Cannot get my miles!

Over a year ago, my wife and I traveled to Turkey. We handed our Voyager Miles cards to the people who checked us in. After our travels we noticed that our miles was never allocated to our accounts. We phoned and got told that we must just email the boarding passes. So we did. Two months later, we phoned again and got told that we need to mail the original boarding passes. I told the lady I do not want to, because the postal service in SA is quite bad and I do not want it to get lost. So she suggested I courier it (at quite a cost). After doing this, we waited another three months before we phoned again. They had lost our original boarding passes! Since then we have been trying to get those miles in countless ways. We keep mailing, phoning, but no one can help us. It is now over a year since we traveled. PLEASE HELP!!!