BAD service

for the past year and a half i've been trying to set up a direct debit to both pay the areas and watch dstv each time i call they either can't help and had to mail another department on other occasions they could help and a debit order was set up but nothing was deducted and since then the debt moved from R1000 to R1500 to R3500 i feel its unfair because ive been trying to set up the direct debit because i have dstv price lock i cant speak to any agent and theres no call center for this department