Two months have passed since I successfully paid, and my total expenditure has reached $800, so why am I still stuck at Tier 1 and I don’t see the upgrade button?
FYI，my project id: metal-bonus-458209-q4
@Lalit_Kumar Please checkout, thank you so much.
Hii @GoodJoy
Welcome to AI Forum!!!
Thank you for reaching out.
I recommend please connect directly with Google Cloud Billing support for assistance regarding your billing. They will be able to review your account details and clarify your problem.
We’ve already tried and suggested submitting an application; however, it’s been three days since the application was submitted and we haven’t received a response. We urgently need higher rate limits.
Opps, i need you help. 
@Shivam_Singh2
Hi @GoodJoy,
Could you please confirm if you are still experiencing this issue?
ooh, it has solved, Tier 3 , now. Thanks!