Vodacom - Payment still not reflecting on my account

Still no answer since I’ve made a query about my EFT payment of 31 Aug 2019. Send several emails of proof of payment as well as bank statement. Only received a phone call from Lance. He requested again proof of payment from me. Which I’ve done again. Asked for feedback from Lance. But not even a response if they’ve received my email and to confirm they are investigating the lost payment. Poor poor poor service.