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Frequently asked questions

Below are questions we frequently receive from customers. Still not finding what you need?
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Where can I see all my transactions?

I try to get a refund but get an error, why?

I try to enter a new card, but it doesn’t work. Why not?

Why do I get failtopay when trying to pay with invoice?

How do I get Maven credentials?

I’m not building a Native app, can I still use your SDK?

How do I change between Stage and Production environment?

I need help, is there any other way to contact you then the contact form?

Glossary of terms

Below are some explanations of words used on this site.
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Acquirer agreement

An acquirer agreement is required to be able to accept payments made by card. The agreement is signed with a third party that has the right to acquire VISA and MasterCard cards. The acquire make sure that the transaction between a card payment and your bank account works.

Swish commerce agreement

You need a Swish commerce agreement to offer your customers payment by Swish. The agreement is signed with your bank.


Test environment


E-identification system in Sweden


Swish is a mobile application for transferring money within Sweden. The application enables instant payments between bank accounts through mobile numbers linked to account numbers.

Native app

An app designed and written specifically to run on and integrate into a particular operating system. Such as iOS and Android.

SDK (Software Development Kit)

A set of development tools that enable software developers to build applications against a specific software package, software framework, hardware platform, game console, operating system, or similar.

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