I was a member of AWS customer advisory board for years. Two dozen of largest enterprises and unicorns and so on. Nobody wanted the billing department "inline" of systems controls.
AWS provides all the controls you need to flip the switch yourself, and provides the CDK / TF / etc. patterns for it. Plenty GitHub projects to host your own light switch service.
I was a member of AWS customer advisory board for years. Two dozen of largest enterprises and unicorns and so on. Nobody wanted the billing department "inline" of systems controls.
AWS provides all the controls you need to flip the switch yourself, and provides the CDK / TF / etc. patterns for it. Plenty GitHub projects to host your own light switch service.
Don't relinquish the switch.