Painful horrible and putrid after sales service coupled with many complications in their systems towards customers

It's been 2 weeks of pain in this time of crisis with supersonic. I've been trying to purchase a voucher since 29th June and was faced w the challenge of trying to get my account number from them however it was days and days of toiling and R300 airtime( which is almost another vouchers money) that had been wasted as this could have gone for bread and milk. I took the leap of faith to then transfer the amount and referenced as much as I could but was told by a rep that they can't trace my payment in this digital age. I even went as far as despite risking it, sharing my account number this was from and the cellphone number which my account is linked to as well and I was given this ******* response from a customer service rep. At the same time I asked for an invoice and up till now have had no invoice, just a regretful headache with supersonic and the low class customer service provided. The systems are the worst in terms of getting vouchers and their reps are terrible when it comes me being a customer. I haven't even mentioned the number of times my calls were dropped. I'm just really sick of it all.