This is application is not available for download in the Xposed repository. There are two reasons for that.
1. It's a modification on obfuscated code. This means that there could be a risk that updates to the SEQR application may break this module even though no modifications were done to this code.
2. The application actually makes it hard to see what sum of payment that you confirm. I might look into finding the value and displaying it as a toast.
If you are interested, you can find the source code for the module on my github: