Mpesa voucher

I received Mpesa vouchers as a gift. From day 1 it has been a nightmare. Firstly it took 4 days to get a card linked to my account, then the card was deactivated, eventually after a week the card was linked, but my money loaded has disappeared. After several calls the bucket is passed and IT struggles to find the reason. Vodacom is really good at logging requests, but not sorting it out. I now see it as theft of my money! How will Vodacom compensate for my inconvenience?? This is unacceptable!!!!!