When they actually had retro stuff I bought a bunch of games and had several wtf moments including a ps1 disc split like pac man. I returned hundreds of dollars worth of junk/defective stuff and did not have any issues. Eventually I got sick of the random condition lottery and stopped ordering retro stuff. I did get a copy of Xenogears in okay shape with case, cover art (with a little moisture damage) for $10 so there were some wins that kept me playing longer than I should have.
Yeah, you are fine. I think GameStop bans are mostly related to trades. Unless you are returning every single thing you buy, even if you only kept like 50% of it, they should still never be in a position of losing money overall. Trades that’s a possibility for them. I think as long as they are not losing money overall and you aren’t stealing or committing return fraud, they wouldn’t have any reason to ban you other than an associate feeling the need to get personally involved out of concern, annoyance or spite. They can’t be in the pre-owned with no description and pretty much no verification of condition business, plus selling opened display copies as new without expecting a large amount of returns.
Trades have specific numbers that cause bans, returns probably don’t? Has anyone ever been banned for anything other than winning too much with trades?
A few random returns should not cause any red flags, that said there seem to be unexplained bans going around so who knows.