How are you chucking that much data while still being concerned about cheap? I can’t really suggest anything useful technologically without knowing what the data is
Don’t knee jerk change supplier because you’re annoyed haha, you’re unlikely to get cheaper and kinda likely to get less reliable - that’s on you to justify later to the person asking why your 300TB/mo pipeline broke, not something I’d want to explain without having thought through the initial reaction properly!
At least discuss it with someone first, who knows maybe 3 grand a month isn’t that big an expense considering it’s probably something the company needs to operate. Having a “top level” executive layer implies much more budget elsewhere, it can’t be that big an expense. Maybe they can get rid of a lower level exec to pay for it. Or maybe you don’t need all of the outgoing data. Can’t really guess anything without knowing the situation better
Operating in an annoyed bubble is almost guaranteed to be way more stress down the road though in any case, get a fresh mind on it