Need new API accounts to start out at Tier 2 (or better preferably)

I’ve got a platform which I’m using for clients of mine. I’m getting about 5 to 10 new clients each month. Each client needs to have an OpenAI API account, to use the API.

My problem is that every time I onboard a new client, they’re capped and my system doesn’t work because of it. What’s the best way to ensure my clients are bumped upwards in tiers to avoid capping ASAP …?