Are these codes related to any Phone Operator ? If so be careful …
Spotify will probably disable your account after the 1st or 2nd month.

I bought 2 years ago some similar offer on Ebay (for a one year subscription to Spotify)
but one for myself, one for my gf, one for my brother and another one for a friend…
All of them went DOWN on the 3rd months for the luckiest of the group (mine stopped on the 2nd month).

So even tho it's quite cheap, you will be warned…

I am not accusing anyone, but just talking about my personal experience with a similar offer.
After i don't know about the one sold on this forum.

T.