Sterk Kinekor Classic Voucher Confusion

I am unable to use the vouchers on a 2D movie. I phoned EBucks on Dec 20th and I asked to resolve/reimburse me. I bough more vouchers which I could use to go see Ferdinand in 2D, but the first set of vouchers I bought did not work. Today (after follow-up with Ebucks because they never came back to me), Ebucks returns my call and says, "these vouchers are not for 2D or 3D movies, but for normal movies showing at the cinemas" -- what does that even mean? I specific instructed the agent to not close the call because I don't understand why I can't use the vouchers for a movie. NOTE: The first set of vouchers give problems, the second set of vouchers (all Classic vouchers) I could use at Irene Villiage Mall.