On Air TV don't respond to cancel requests

Hi. Please help I have been trying to cancel the subscription since the h of May until today. I sent an email to their support and they don't respond at all. When I send an email to their billing department they say I must call or send the email or WhatsApp. When I whatsapp them they respond once or twice then stop,they ask for your details as if they are helping you then nothing.

They tried debiting and I have already moved the money. These people are so unprofessional dstv should not ever work with them. They are just ****mers