Jay K.

Purchased a key from a seller (Order **************) which turned out to be unusable, so I contacted the seller asking for a refund. When I didn't get a reply from the seller, I contacted G2A who replied that I could claim on their 'Money Back Guatantee' after seven days.
So, today (six days after initial key purchase, and two days after first G2A contact), I went to check if there are any messages from the key seller only to find my G2A account HAS been blocked. And, after contacting G2A to deal with the login issues presented by their G2A.com system, I am told to contact *******@g2a.com
Thr reply is entirely dodgy in itself, asking for photo ID (passport, driver's license, etc), handwriting, account user login, and bank with PayPal account details, along with any other accounts used in alias. Exactly everything fraudsters will ask for.
One, or two finalities can be taken from this,; that G2A are utter sh*te and will do their best to dissuade buyers from complaining - and claiming against their seller members upon the G2A 'Money Back Guarantee', going as far (if not further) than blocking buyers access to their accounts. Or (and) really are requesting extremely sensitive data protection information from the buyer member base, of which needn't be requested, as proof of account ID can be given through the two step verification instead.
Very dodgy activity at G2A.com
I firmly believe G2A to be entirely seller based, and highly biased in that favour, complicit in the prevention of refunding money from their seller members knowingly flogging unusable/fake product keys.
I also believe G2A.com to be non-compliant with GDPR.