How do I successfully complete my 90 day reporting in Thailand using a mobile app?

FYI, mobile 90 day reporting in Nan province. Yesterday afternoon I did my 90 day reporting via de app on my phone. First I had some problems with login, but it seems that the login name is case-sensitive. Then I tried to scan my passport but that did never work, so I filled all in manual. It is all a bit fiddling around as some things not work properly but I managed to do the report. Then I did check the status and downloaded the application. From that I made a screen-shot. This morning I did receive an email that my 90 day report was approved. So I did use the app again to check status, download the report. Again from that I made a screen shot and did print that out. All worked fine for me.