Vodacom upgrade/ New device ****

I have been a customer of Vodacom for approximately 12yrs if not longer. I have gotten to the point of avoiding upgrades as Vodacom has messed up my account in terms of debit orders on numerous occasions. Vodacom sent an incorrect device in November 2022 for an upgrade, I informed them of this and they said they would collect the device, they took 2 weeks to collect the new sealed device after numerous reminders to collect the device. The device was collected and they continued to charge fees for the device for 2 months. Instead of just crediting my account they then decided to charge a settlement amount without prior notice. To date and after numerous calls to vodacom I have yet to be refunded. I find it ******** to be charged for a device that I no longer have. If this is the type of service or lack there of to expect from Vodacom, then be very weary of this ******** institution operating under a front.