Another shot in the dark here...
Perhaps, when Admin was considering capping the prospect expenditures at $30M, they wrote the code and had it all set to go live, then forgot to take it out when they changed their mind, so the current offer you're making is being "cancelled" because it takes you over the (never technically implemented but planned) $30M prospect cap?
You seem to be in good shape with payroll and prospect budgets otherwise, so I'm trying to come up with any possible explanation. I'd be interested in hearing their ticket response though, so please share it when you hear back.