Mango Guest Care should be renamed to No Care

I had to change my flight on 5 Feb 2020 because of a family emergency (having sent a letter from a doctor at the hospital) and was advised by the consultant that I would have to pay a cancellation fee (which I did for the change) and a voucher will be issued to me to use at a later stage. I had to fly my elderly mother to Cape Town after the hospital stay and made use of them once again and bought another ticket for myself. To date no one has even phoned, have repeatedly sent through the same e-mail. Can see that they read it but still no response. Shocking! I will not book with them again!