Fine tuned gemini 2.5 flash lite model quota is too low

Hi, I fine tuned gemini-2.5-flash-lite , and I have the free trial $300 credits for almost a month now, The main problem is I dont have enough RPM I think mine is around 10RPM. In the quotas and limits there is no model for generate content requests per minute for gemini 2.5 flash lite. How do I get this quota to 600 then ? One documentation says gemini 2 models follow pay as you go for quota increases. Does that mean If I just add $10 in my vertex AI wallet and not spend them immediately will my quota be increased ?