Excessive Billing on Price Lock

I have been a subscriber since the early days of MNET and have remained loyal. In December I signed up for Price Lock. This included a new Explora and installation. I was told I would be paying R749 per month for EVERYTHING (including dual view). That is what I was billed in January - however since then the amount varies every month (no I haven't rented movies). I called 2 weeks ago and asked for a statement from December because the agent couldn't explain the charges. This never arrived. I have found statements on the DSTV app (but February, April, and June are missing). The ones that are there have multiple line items each month that make no sense. Because I have a debit order - they just help themselves to my money!

In March they sent an email inviting me to claim a 30 year remote - I am still waiting for this too. Also reported to the call center agent 2 weeks ago - no feedback either.