Help to solve; subscribe to Enterprise and pay for support contract.
Actually, this was what we already discussing this morning, because this was our assumption, too :-))
you might also want to try calling sales and asking if this is how their product is intended to work, they might be able to escalate
All self serve tiers Claude Team, OpenAI Business, ... all are considered the same as personal plan. The only differentiated tier is [self service] || [enterprise support contract with guarantees]