Hi my name is ***** ***** I will be the expert working with you today to help and resolve the problem you have posted.
Let me know the problem a bit more in details.
Try opening a web browser and open google or yahoo that will confirm the data service is working or not.
open yahoo and search the web for anything and confirm that the internet is working after that i will give you more steps.
Follow the steps on your phone to remove the account first after removal restart the phone and start adding the email account.
remove the email and restart the phone.
if you have data on the phone use superbackup and back them up on sd card and then do a factory reset to the phone.
its is nothing to do with mobile limit the only mobile data will be use is the superbackup from the app store.
open apps store from the home screen
google play store.
press the search icon and type in superbackup you will see a green colored hard drive install that.
have you opened google play store?
click on the search box where is say google play then you can type.
you have to open Google Play store
go back to the homescreen and look for google play store icon click on it to open.
i can call you if you need a phone assistance.
offer has been sent.
no problem let me know when google play store is open.
do you see a microphone icon on the top
install google play store first and then let me know.
you can connect the phone to a computer and the backup your phone data. Once done let me know.
I am sorry but i have provided you all possible steps, I gave you phone option and remote option too. i can only give you steps on the chat session and if things are not working opt for a phone support or a remote support. Google play is a standard icon on all android phones.