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Company details

  1. Cryptocurrency Service

Written by the company

Coinumm is all about simplicity. An easy verification process gives you access to secure and fast access to buying, selling, swapping or sending digital assets. To stay ahead of the curve, we continuously improve existing products while expanding our scope to introduce new services. That is why in addition to accepting SEPA international bank transfers, our platform is also fully optimized for credit/debit cards for fiat currency payments for buying cryptocurrencies.


Contact info

1.8

Poor

TrustScore 2 out of 5

38 reviews

5-star
4-star
3-star
2-star
1-star

Hasn’t replied to negative reviews

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Rated 1 out of 5 stars

Scammed and no help

I had an issue with this service where they took my money from me and they haven’t helped me recover my funds for over a week, they said their investigation will take 48hours, it’s been over a week..

1 July 2025
Unprompted review
Rated 1 out of 5 stars

I am trying to make a withdrawal and

I am trying to make a withdrawal and
it is stuck in a review state for 12 days. I have been trying to communicate with customer service but the are not replying.

29 March 2025
Unprompted review
COINUMM logo

Reply from COINUMM

At Coinumm, we are fully committed to ensuring a secure and transparent experience for all of our clients. We understand how important timely transaction processing is.

Please note that in order to assist you further, we need to be able to identify your case in our system. Unfortunately, based on the information provided here, we are unable to locate your account or verify any specific transaction details.

We kindly ask you to reach out to our support team directly at support@coinumm.com, and provide the information about your exchange or any other details so we can investigate this promptly:
The email address linked to your Coinumm account
The transaction invoice or date of the withdrawal request (if available).
While some withdrawal requests may undergo extended compliance review as part of our internal security procedures, we always strive to resolve them as swiftly as possible, and your cooperation will help us do so.

Thank you for your patience and understanding. We look forward to resolving this matter for you.

Best regards,
Coinumm Team

Rated 1 out of 5 stars

Support is not answering after few…

Support is not answering after few inquiries, seems like they don't care about their clients,because even info provided for the transaction from the support was incorrect

24 October 2024
Unprompted review
COINUMM logo

Reply from COINUMM

Good afternoon, F M!

Thank you for leaving a feedback!
We want to inform you that you wasn't identified as a customer of our service and the customer support is available 24/7 and we are never leaving our customers without reply.
It seems that some misunderstanding caused regarding your situation.
If you have any issues with your exchange, please contact us by e-mail info@coinumm.com or provide more detailed information about made exchange.

Best regards,
Coinumm Team

Rated 1 out of 5 stars

Scammers

Scammers, be careful this company works with the scammers, they will take your money.

19 May 2023
COINUMM logo

Reply from COINUMM

Good morning, Mary!

Thank you for contacting us!
Coinumm is a fully regulater european company which provides digital assets exchange services to customers, we are trustly company and we can say for sure that we are not a scammers and some misunderstanding caused.
If you have any issues with our company, please contact us by e-mail info@coinumm.com and provide more detailed information about made exchanges and we will try to provide as much information as we can.

Best regards,
Coinumm Team

Rated 5 out of 5 stars

I use the servise when necessare

I use the servise when necessare. Trensfers are fast, the commission is objective. There waas once a delay in the transfer, i contacted support, they ansvered quickly, helped to solve it.

6 October 2022
Unprompted review
COINUMM logo

Reply from COINUMM

We appreciate your feedback!

Best regards,
Coinumm Team

Rated 5 out of 5 stars

I have been using the service for a…

I have been using the service for a long time. Transactions take place without any delay. Reliable exchanger, favorable exchange conditions, good exchange rate. Only positive emotions from cooperation.

17 May 2022
Unprompted review
COINUMM logo

Reply from COINUMM

We appreciate your feedback!

Best regards,
Coinumm Team

Rated 5 out of 5 stars

Coinumm very efficient platform

Coinumm is an excellent cryptocurrency exchange platform, I have been using it for some time to test if it was reliable and it has turned out to be very efficient and easy to use, also the support it has is very good and fast, I totally recommend it.

25 January 2022
Unprompted review
COINUMM logo

Reply from COINUMM

We appreciate your feedback!

Best regards,
Coinumm Team

Rated 5 out of 5 stars

Hello,,,Hello, the company is very responsive

Hello, the company is very responsive, they answered all my questions.
I figured it out in 5 minutes, the interface is great, transferred bitcoins to euros very quickly and efficiently.
I liked this course. Recommend!

11 December 2021
Unprompted review
COINUMM logo

Reply from COINUMM

We appreciate your feedback!

Best regards,
Coinumm Team

Rated 5 out of 5 stars

It's nice to work with you because the…

It's nice to work with you because the operator is always in touch and gives any information that is understandable to an ordinary person on his request. You feel that everything is safe and clean. The guys work quickly and quickly transfer a plus to the piggy bank for this, often right away in 2-3 minutes, but within 15-40 minutes it is also normal to wait if the operator is in touch. Thank you for the service

20 September 2021
Unprompted review
COINUMM logo

Reply from COINUMM

We appreciate your feedback!

Best regards,
Coinumm Team

Rated 5 out of 5 stars

I've been using this exchanger for 2…

I've been using this exchanger for 2 months. There is no scam. Everything works stably, without lags. Verification is easy and fast, technical support is responsive and can help you with any problem.

2 June 2021
Unprompted review
COINUMM logo

Reply from COINUMM

We appreciate your feedback!

Best regards,
Coinumm Team

Rated 5 out of 5 stars

It was very easy to change my crypto at…

It was very easy to change my crypto at coinumm. And it was really unexpected because of operations in crypto took a lot of time. Verification, confirmation and so on and so force. Thank you!

30 May 2021
Unprompted review
COINUMM logo

Reply from COINUMM

We appreciate your feedback!

Best regards,
Coinumm Team

Rated 5 out of 5 stars

This is a good exchanger

This is a good exchanger. i exchange my cryptocurrency here. I had no problem using it. if you need change your money you can do it here, this is not a scam. Simple to using and fast. You just need to choose one of packages. Nice.

22 April 2021
Unprompted review
COINUMM logo

Reply from COINUMM

We appreciate your feedback!

Best regards,
Coinumm Team

Rated 5 out of 5 stars

Opinion about work quality

Coinum provides fast services and attentive support team with fast response . Thank you!

22 November 2020
COINUMM logo

Reply from COINUMM

We appreciate your rating of our service and feedback!

Regards,
Coinumm Team

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