Problem with FIFA MOBILE

[CR72015_THEBEST]

Hello, I'd like to ask An information about FIFA MOBILE FOR SMARTPHONE.
I had a guest account that was leve 12, its Name was 'BUONNATALE', But when I tried to connect It with a Google Account The game resetted The guest account. PLEASE!!! Is there a possibility to recover It?
Waiting for An answer.
Thanks a Lot, goodbye