I've had problems with mtg also, but all seems ok lately. Glad you got it sortedIn the past I had issues with mindthegapps as it left me with non-functioning Google Play services.
Strange thing, is that I could not activate internet access right away as it was disabled. I restarted my phone a few times and suddenly I could activate it.
Not sure, what happened there, but now I got the Play Store back to work.