Request for Refund of Incorrect Double Debits on Cancelled Contract Device

I opened a contract in March 2026 and two phones were sent to me. I returned one of the phones and my Vodacom account reflects that the second phone was cancelled. Despite this double payments were deducted from my bank account for both March and April. I reported the issue immediately after the first incorrect debit in March but to date the matter has still not been resolved and I continue to be sent from one department to another without assistance. I was previously promised that the overpaid amount would be credited yet the full payment was again deducted twice in April. I am requesting a refund of the incorrect deductions directly into my bank account not as account credit.