DSTV overcharging and just debiting my money

DSTV is showing me flames this Lockdown. On 27 March I tried to upgrade to premium via WhatsApp and for some reason is downgraded me to easy view. On the 15th my package was disconnected and via WhatsApp it said I owe R370 which would be debited on the 15 May 2020. Next thing on the 27th I wake up to an sms that my service has been cut coz I owe R420, not sure how I got to the amount. I called the call center and my service was connected again and a debit order of R420 will be taken on the 28th April. Today 28 April, I want to watch things on my catch up, I get an error. When I check my account via the whatsapp account, it says I owe R1054 which will be taken today. Please help me understand and a phone call will be nice to understand why my service is always disconnected and how I seen to owe a lot of money