Are giftcard allowed or not?

Can someone cleary tell if giftcard’s are allowed or not? I’m seeing people getting banned for it but at the same time there is an “other” section in giftcard’s and a ton of giftcard’s being sold by high rating seller’s.

Only Steam, Xbox, Nintendo, PSN, Itunes, Amazon and GooglePlay gift cards are allowed. If you see listings with others beyond the ones I told, please report it so we can take them down.

Change “other” to Amazon than and tell sellers cleary anything else than that isn’t allowed. I got suspended for gameflips comunication mistake…