taken for a ride by service provider

I bought a recharge voucher from a wholesaler for Telkom mobile right there and I tried to recharge by dialing the used string together with the recharge pin however it couldn't go through, a message appeared reading \pin locked"I called the service provider right there to verify if the fault it with them or the wholesaler. The friendly consultant did confirm the fault was with Telkom and the matter should be resolved within 72hours of technical problems do arise I understand that my problem is that I have called Telkom ever since the 8th December 2015 to date trying to get them to resolve my query as a customer I never not even once complained regarding the constant postponing of the turn around time. It came to my shock today when I followed up with the case and I learnt that my case has been closed without remarks. All this time I been patient and calling my service provider and as a good client who understand that technical problems do occur I felt like a fool who's been taken for a ride"