Good Prices But Poor Customer Service
I bought 3 "Microsoft Windows 10 Pro OEM CD-KEY GLOBAL-Lifetime" from Keysbuff.com. 6 months later I tried to activate them but got an error message that they were invalid. So I contacted Keysbuff and after getting the run-around, they finally said, "The key cannot be kept for too long, if the time is exceeded, the key will become invalid." When I said that license keys should not expire, they said, "Our key has no storage function, the key needs to be activated in time, if it is not activated for a long time, the key may be invalid. Your order took too long and has already exceeded our 6 months compensation time period,so we cannot compensate you now,SORRY.But we can compensate you with a discount code." I pointed out that it had only been 184 days since I bought the keys. Only after I threatened to leave reviews about their poor product and service did they relent and provide me 2 new license keys that worked, but not the 3 that I bought. If Keysbuff had told me when I bought the keys that I needed to activate them within a certain period of time (instead of calling them "Lifetime" keys), I would only have bought the keys I could activate right away. I do not recommend this seller.