Poor Service

First MTN increased my installment amount with 3 months of taking the contract, without any notification. Then months down the line after I cancelled my contract, they give me the runaround with regards to refunding me. On the 31st of July 2024, I was advised that I would be refunded within 21 days. I followed up today and was advised the ticket was closed yesterday on the 10th of September 2024. The conclusion on it is, I would have to go to any MTN branch, to get my refund. I got the contract online, was paying via debit order and now have to get my refund in a branch? They probably say they're a cashless branch too. What pathetic service. They clearly don't value their customers.