from a post on bitcointalk.....purchased 15 or so and they worked fine.....except digital ocean
got the hump coz i was running master nodes and terminated my account for crypto mining(wich i wasnt) and such and now i guess im black listed or something as cant open a new account for love nor money so cant use the 4 codes i have left......cant remebr who i got them from...guy had a selly store...

there not EDU nonsense if that is what your wondering....