Incredible Connection - Greenstone (Terrible Service)

Bought a Microsoft Office voucher and went in to return it. The lady took my voucher and promised that the store manager named Julian would either try to arrange a refund or would return me the voucher. Its been a year and the issue has not been resolved. I called in to lay a complaint at the call centre, they said they would send me a red number and resolve the issue. I waited nothing has been sent to me and I had to call in again to explain the issue. The service at incredible connection is terrible and I will not purchase from them again