Hi my name is ***** ***** I will be the expert working with you today to help and resolve the problem you have posted.
I am sorry to hear that you are having such trouble. I will try my best to help you out and resolve the problem as quick as possible.
What is the error message you get when you try to install an app?
Please check the payment method for remote/phone assistance.
on the computer try to login to your gmail account and let me know if you are able to login successfully or not.