change the store name is something? And Getting paid on Amazon Canada

izagtr

Hello, I had 2 questions for Amazon:
I changed the "display name" of my Amazon account, so I changed the store name, will I have a problem while receiving payment? but just change the store name, payment domain name and surname etc. it's still the same person. Also, I'm selling in amazon canada, but I still don't understand how to pay. Should I use the same payment method for amazon canada or add a "new store"? (same person as amazon america and canada)