Few questions pertaining to refunding repeatedly on new accounts without getting linked/closed

When buying prepaid cards to use, which kind will actually work on amazon? and then after you get refunded back to the card, how are you supposed to move that money to a new card to go again? Or is this not the best way at all to handle the payment side of thing?

Next, I'm looking into getting a prepaid mobile hotspot from like TMobile or something to use because every time you reboot you get a fresh IP. Opinions?

Lastly, this would mostly be for drop shipping so I'm not too worried about the address factor, but a lot of people have said that if you change a letter or two about the shipping address it won't get flagged, opinions? (ex. Washington St becomes Washinton St)