I signed up for google cloud and recieved 300$ free trial. Recently I wasn't able to ssh into my instance. So I checked the google cloud console and found a message showing you must Enable billing to use further. Now I can't associate my project with the free trial account which has 285$ and 45 days remaining.[Also the number of days left has drastically reduced from 55 to 45 after this]. When I look into the free account it shows closed.
The free trial account was suspended. Reason - "Unfortunately, we were unable to verify billing instrument ownership using the documents you submitted" says Google.
Solution
Go to: https://support.google.com/payments/contact/verify
Submit Government-issued identification and proof of ownership of billing instrument. The verfication process typically takes less than 24 hours, but, in rare cases, may take a few days