[VOUCHED] selling visual studio, windows server 2012 r2, 7&10 enterprise 64bit keys

I am selling microsoft windows & visual studio keys. pricing:
windows server 2012 r2 5$ or 7m 07 gp
windows 7 enterprise 64bit 5$ or 7m 07 gp
windows 10 enterprise 64bit 5$ or 7m 07 gp
visual studio: 10$ or 14m 07 gp
Team Foundation Server 2015 Update 3: 10$ or 14m 07 gp

i will offer 100% refund or replace key if they stop working.
you must leave vouch after trade!
i wont to first unless you have more vouches than i do.
F.A.Q:
how many uses keys have?
one, but you can move it between devices by deactivating it on old and activating on new.
will it work for vps?
yes if the OS matches key.