iWyze Gap Cover. Non service.

We took out Gap Cover for medical expenses with iWyze about three years ago. Have never claimed up to now. We now need to claim for R15000.00 that we have been charged by a Doctor Fourie in Cape Town for the use of the radiation machine at the Oncology centre in Sandton. This expense was completely unknown to us and came as a surprise. Our medical aid did not cover this si we sent the account to iWyze gapcover. We have sent the claim in twice, tried to call them numerous times and to date we have had absolutely no feedback from them. Consequently we don't know if this has been paid. Really pathetic service, in fact its NONSERVICE!