Really folks, dont risk it !! I purchased a MS365 key (Office365) which was promptly delivered, but it never worked. Once entered into Microsoft's admin portal, none of separate products were activated, and no expiry date was shown. When I first contacted the vendor (with a screenshot of the error), they simply claimed "We have delivered everything you ordered" and suggested I contact Microsoft Support. They also claimed they were an official Microsoft partner, but no details could be found on the Partner Portal, and they refused to supply their registered partner address or partner ID number (highly suspicious, no?). I wasted more than 21 hours (spread over several days) in online chat and remote control sessions with Microsoft Support before we collectively concluded the supplied key didn't work. [As a separate issue, you really would think Microsoft would be able to tell immediately whether a key was valid - but apparently not !!] I let the vendor know all this, and they just stayed defensive, asked for screenshots of support conversations (which of course I didn't have), and refused to assist me if I could not provide them with material I didn't have. Judging from other comments and reviews from other buyers, this seems pretty typical behaviour. Eventually, I just bought a licence from another company (Blue Nandu) and asked my credit card company to get a refund for me (as I held them jointly liable for the supply of defective goods). A couple of days after getting my credit card refund, G2A sent me a mail saying "Your G2A account has been blocked due to anomalous activity that our system detected. We are sorry for this inconvenience, but this decision will not be changed. Your account will remain blocked." I assume they were annoyed because the credit card company will have taken back the money. Funnily enough, I now seem to be receiving extraordinary amounts of spam to my e-mail account. I'm sure it's just a coincidence.