AWS/clouds aren't always the best solution for a problem. Often they're the worst (just like any other tool).
You don't provide a lot of detail but I imagine at this point you need to get "creative" and move at least some aspect of your operation out of AWS. Some variation of:
- Buy some hardware and host it at home/office/etc.
- Buy some hardware and put it in a colocation facility.
- Buy a lot of hardware and put it in a few places.
Etc.
Cash and accounting is another problem. Hardware manufacturers offer financing (leasing). Third party finance companies offer lines of credit, special leasing, etc. Even paying cash outright can (in certain cases) be beneficial from a tax standpoint. If you're in the US there's even the best of both worlds: a Section 179 deduction on a lease!
https://www.section179.org/section_179_leases/
You don't even need to get dirty. Last I checked it was pretty easy to get financing from Dell, pay next to nothing to get started, and have hardware shipped directly to a co-location facility. Remote hands rack and configure it for you. You get a notification with a system to log into just like an AWS instance. All in at a fraction of the cost. The dreaded (actually very rare) hardware failure? That's what the warranty is for. Dell will dispatch people to the facility and replace XYZ as needed. You never need to physically touch anything.
A little more complicated than creating an AWS account with a credit card number? Of course. More management? Slightly. But at the end of the day it's a fraction of the total cost and probably even advantageous from a taxation standpoint.
AWS and public clouds really shine in some use cases and absolutely suck at others (as in suck the cash right out of your pockets).