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Can't refund you if I don't have your email ID. Write me at Alibek@gmail.com and include your phone number so I could look into the problem why you did not receive a message

Would be nice to have some more details: Android? IOS? Version? Wifi or mobile data?
Sms me to +971505582336 I will get your free up upgraded to premium until issue resolved.
Will get you upgraded to premium on server side. Keep using the app you have.
I've enabled logging and see you got registered 
Will investigate why you could not get registered earlier.
Will be happy to return your money x2.
More info would help to resolve the issue. Please, email your phone number, phone model,OS version.