Sorry this isn't any idea but a complaint (that maybe you can change??) We have enjoyed using mobile pay in the past at our fundraising events until we received our new cc processors and the new app. Just found out through customer support that transactions do not automatically show up in eTapestry and that we have to import them ourselves (21 step process). This was the main advantage for using Mobile Pay in the first place. Really, really surprised you would come out with new processors and have it be a major step back for the customer. No reason to use mobile pay anymore.
I use RE NXT and have to manually put them in also. Makes me not want to use it again.