The developer forum has no ability to expedite Rate Limit/Usage Limit increases .
I understand it is frustrating when you do not receive a reply right away, however, the limit increase request form is currently the correct way to do this.
You can also use the help bot at help.openai.com (bottom right hand side icon) but I would imagine you will get a similar answer.
Some advice, anyway - you can see if you’ve done anything counter to what they are looking for in the rate limit form, which you click on within the usage limits page.