Originally Posted by
ISTFlyer
Probably, you should have noticed that you are able to use your voucher only on TK flights and you would only use 1 voucher per booking for all flights in the same reservation (max 4 segments).
Is it really 1 voucher per booking with max. 4 segments? I thought it is 1 voucher per direction, i.e. a return trip would require 2 vouchers (and each would probably be able to serve 4 segments). Thanks for clarification. If you are right, I have wasted one of my vouchers.