Bad service

After having my ovhd decoder installed by a dstv installer, I could not get after sales service. I contacted the dstv call centre and was given 3 numbers for their field service ( ********** 357/ ********** 000/ ********** 375). After calling all 3 numbers I again contacted dstv call centre and being really perturbed at this time, I asked to speak to a manager. I was told (by Lerato) that no manager was available, but to leave the details and they will get back to me. After 5 hours of not getting any return call, I again contacted dstv and was given the reception number. The reception put me through to field services where again I got no answer. I again contacted reception and explained clearly and calmly what my problem was. She put me through to managerial services. At managerial services the women did not understand/ or could not hear my name or understand in clear ENGLISH that I was not a DSTV customer, but had a problem with a DSTV installer. NO OTHER PERSON THAT CAN UNDERSTAND ENGLISH WORKS IN THE MANAGERIAL OFFICE. ONLY THE ONE THAT CANNOT UNDERSTAND ENGLISH.