SumUp Reviews in November 2026: User Ratings, Pros & Cons

Security breach and missing money

I have been waiting over 2 months for a refund of £60 when my sum up logged into a completely different account. This has scary security implications, and sum up is yet to repay me after weeks of contacting them. This is a lot of money to a small business owner such as myself. They have been completely useless at resolving the issue

Very professional

Very professional, patient and helpful. Problem solved! ☺️👍

The let down for me is the software

The let down for me is the software. Constantly kicking you out and having to log in again. I have had enough and moving elsewhere. Today it did this and I was unable to log back on. Can't complain to sum up as you have to be logged in for that. After Sumup response: I was just sent a generic bot reply, that on the face of it looks good for them and other people reading it.

My card reader isn’t charging I can’t…

My card reader isn’t charging I can’t get receipts and I think it’s frozen. The base is 100% charged but the card reader is 0% now it’s not even coming on. It’s just got a green light on at the top. It’s not switching on. My husband card reader works on the base bit so I know it’s the card reader. It’s not been right since I got it. But can’t get through to anyone. I need a new one.

query about account transaction limit

Recently used sumup machines for our tournament. Had an issue whereby all machines stop processing payments. Entirely my fault as I did not realise I needed to further verify our account. The support at sumup was great. Quickly resolved the issue and was very clear throughout with what I needed to do. None of this "I will get back to you in five years" stuff. Response times were great and kept informed at all stages. Thanks sumup.

Missing Money STILL NEED HELP PLEASE with this matter

UPDATE Received a message today Thursday 7th from SUM UP stating the money had been paid to me, just that, I need to know what card it has supposedly gone to as it is not in my bank account, wrote back to try and get the information but have had no reply, I really need to find where it is please! Used my new sum up this year, supposed to have around £100 paid into my account following sales on 27th March! I know the card is set up correctly and working as the initial £1 went in fine, But I ...

Do not use sumup.

Do not use sumup if people are going to be paying with credit cards or international cards. And if you do make sure you spend 2 weeks beforehand getting everything verified and setup. If you don't they just hold your money. You hardly ever get through, and when you do get through to them it is like trying to communicate with a monkey that gets angry and smashes the keyboard. Worst customer service in the world, best to use another or buy a more expensive card reader or app. The reply that ...

I am new to SumUp and have been really…

I am new to SumUp and have been really struggling to set my account up. My main complaint is the lack of customer support. I have 2 invoice numbers and still no response and it has been a week. 23527123 and 23455328. This is a week of not being able to process payments. I think I will be changing to Stripe even though I have just wasted 100 euros on a terminal.

Excellent service

Excellent service! Easy to contact, quick to respond! Thanks SUMUP so I am prepped and ready for my big vending event!

Easy to use and set up

Easy to use and set up. Great features like payment link texting, invoice generation, keeping track of expenses etc. More than happy with my experience with Sumup