According to her, she would routinely have one-time massive fee's credited ($1000+). I'd assume since it's a spike in costs, Amazon has more interest in keepin

According to her, she would routinely have one-time massive fee's credited ($1000+). I'd assume since it's a spike in costs, Amazon has more interest in keeping you as a customer, at your much lower typical usage, than to have you abandon, even if you have a huge bill. Obviously if this was a typical problem, you would need to rethink your architecture and infrastructure needs.