DSTV - took advantage of a special - turns out they took advantage of me and nothing has been special about my experience!

DSTV sent me a "special" 23 June (3 months of premium package at discounted rate). I was advised I could active the special via the whatsapp line - I couldnt. I called in 29/06 an activated the special and by the end of the call I was advised that the special had been activated for 1 July. 1 July turn on DSTV - no premium "special". 3 calls and an email later - still no luck. Call back 2 July and ask to speak a manager - upgrade to premium gets done and I am advised that note is put on account to activate "special". Each month since then I have been been charged (debit order) FULL PREMIUM RATE - no special as advised. I called last week to dispute - was advised that a manager would call me back - I am still waiting for call. I am a single mom and the reason we do not have premium DSTV is because I simply cant afford it. When I was offered a 3 month special, I took advantage of it - but it turns out that they have taken advantage of me rather. I am left in a financially adverse situation now because the special offer has been anything but special. Calling the call center is a nightmare - it is 50+ seconds before you even get a menu to choose from - and very seldom does the menu give you an option to speak to someone. They promise that someone will call you back - and nobody does. And they don't reply to emails either.