Poor customer service by Multichoice

I received an email with a discount offer to pay R299 for 3months for compact,before accepting the offer in the 30th of May I enquired via twitter DM about it was told yes the offer is there and if I wanted to accept I had to pay R403.38 within 24hrs because I had extra view .I accepted and paid by eft on the very same day the 30th of May,A week later my account was switched off because I never paid,when I said I did pay the required amount I was told to email proof of payment which I did email,then I was told to wait 48hrs for a responde since my matter was escalated to finance department.I never got no response about why my account was initially switched off but they only acknowledged that they did receive the payment.All was good since my account was switched back on,guess what multichoice was not done bullying me today I woke up with my account switched off again,when I check on the app today I now have to pay R380 something today.So the money I paid on the 30th does not cover the whole month now????