Shocking service

Vodacom's service s shocking I made a payment on my account on the 11 May 2021. My account still reflects as arrears (although the call centre says we not) This is despite 2 hours yesterday and 3 hours today on the phone, a visit to a Vodacom store, sending the proof of payment 300 (no exaggeration) times to the pop email address, having the matter escalated to a Supervisor D Vinderpaul at 09h00 this morning and having sent the proof of payment and request to that Supervisor's direct email 140 times this morning. Every department can see the payment expect billing. I had a second cellphone - the contract ended last year and I did not want to continue with a further contract - it took me from August last year until last week to cancel it, whilst being billed every month. The same department that cannot find my payment!