Terrible services by Supersonic

I've had a poor and terrible services from Supersonic. Early this year during the 1st phase of lockdown, I've signed up with Supersonic for a wifi. They claim that its month on month contract whilst it's not true. I've signed up for 100gb day and 100gb night contract at R599 per month, after few months I've realised that I was only using less than a quarter of the data. I then called Supersonic informing them of my situation and they advised that I cancel the debit order and only pay EFT when i need data. I did that and even sent the email. 2 months they still debiting my account. I called them and they confirmed that the consultants that assisted me, forgot to deactivate my account, I called and even escalated, and no one takes me seriously. I left message for Manager to call me and no one called me, I've sent another email, no one replies. I then called to cancel the subscription, and the auto replies email said they will call me to confirm my cancellation, still no one called me. I was excited when I subscribe to Supersonic and even referred friends, colleagues but the services is terrible. I will never refer anyone to use Supersonic services, its terrible services and there is no customer services at all. Regards, Fannie