DISPLEASURE WITH MULTICHOICE

I have had some of the worst service from Multichoice. The guys send me an SMS to upgrade my package from Access to Compact for R299. I call in and take up the offer, and the consultant tells me the offer will only be valid from July 2021. On Friday I get an SMS from the company to say I must pay R409 to stay connected. I call the call centre and speak to agent after agent to rectify this mistake and every single one of them promises to get back to me. Three agents later, and none of them has called me since Friday. Yesterday (Monday) I went to the Polokwane walk-in centre, the agent there (a fourth one) says I must email him the screenshot of the discount SMS, I did, and he also has not responded to my email. I'm not sure if this is what multichoice calls great service??????