Dstv need to upskill they staff members

Dstv is a huge ****. I signed up for a contract with them last year December. Over two months I’ve been overcharged and not given a proper amounts. My premium that was agreed on was R549 monthly. My statement is now stating that I’m owing R1908.70. I made a cash payment for the month of March services they couldn’t even allocate that payment on their system. Their consultant requested I must send a bank statement to show the payment and the next thing I’m told I was misinformed. I spoke to a Sthembiso this morning that promised a call back in 5 Minutes from his manager Shriya which I haven’t. This is ridiculous service and I’m not happy. I need this sorted out. Reference number for mY last call is ***0. My customer number is ***8. I demand this to be rectified now