Non-existent after sale service

On 24 Dec we signed up for a R399 month to month contract. On the day, we paid over R500 for activation and what not. A week later we had to pay R410 for the month of Jan which we did. Our debit order for Feb is due tomorrow. We have not had service since Friday because "we are behind". 5 Calls, 1 email, POP sent twice, reached out to them online and still no joy. They jave our money but we are not getting their service. And all we get is a system generated message telling us how sorry they are. To top it off, this is a R399 contract, yet the 1st month was R410 and this month the bill is R440. Disappointed in MTN.