Honest question - I am not familiar with the business realities of taking payments, but here goes: At most companies I’ve worked at, we’ve at least done an exe

Honest question - I am not familiar with the business realities of taking payments, but here goes: At most companies I’ve worked at, we’ve at least done an exercise in keeping our core business process running or available on a competing cloud / connectivity provider or OS, or on prem and offsite. Is it impractical to try and do this with your payment processor? I.e route every 3rd customer to PayPal instead of stripe? Legislative / contractual reasons prohibit this perhaps? Absolutely not blaming the OP here for their situation, a business has made promises of an easy life for payment processing, they’ve (presumably) been paid by the client but are now causing trouble - this is clearly crappy. But it is not exactly uncommon sadly. Edit: Further reading of the comments here do seem to make out that this case in particular might not be as clear cut as first seen. But my general question still stands.