The tricky part is most marketplaces are flooded with recycled junk that triggers identity verification the second you change the bank info, then good luck getting past support. You wanna look for providers that hand over accounts with aged history and verified docs so the platform doesn't flag ownership change. A proper breakdown of how and where to buy amazon seller accounts in 2026 without stepping on a landmine is laid out here
https://gologin.com/blog/multiple-amazon-accounts/ .