If your all payments get a declined message or "Transaction Failed", the CollecTin More system works, but the SumUp reader is rejecting transactions. Usually this has something to do with the SumUp account.
It is likely that your SumUp account setup is incomplete and as you have reached a processing threshold after which they require further information. At €5,000 for example SumUp sometimes start to decline any further transactions. Alternatively, SumUp may suspect suspicious activity on the account.
Please login to your account at https://me.sumup.co.uk to check for notices on your account or to complete your setup. If it's not clear after logging in what you need to do it is best to reach out to the SumUp support team.
- SumUp users: Log in to your profile via the dashboard or SumUp app and access the support section.
- Lost access to your profile? If you’re unable to log in, please use our visitor chat for assistance.
You can also email onboarding@sumup.com
If no reason can be found, please change the password of your SumUp account, as this has cleared the issue for some customers in the past.
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