No assistance at all from service desk and pending unresolved issue with App

I've been using this app for a while now, I struggled to make payment on my purchase and load a new card and the App didn't even allow me to view my purchase it kept on showing view but I couldn't view and submit.

I the tried calling the call centre and there was no assistance not even a single person to answer my call, I emailed and eventually after two days I received a email back from them, the App is still not working so I don't know what the purpose of them having technical support, this will be my last purchase