Complaint. No refund received

I took out a laptop contract with Cell C in November 2022. I have received 5 incorrect laptops since November, I then have to request a replacement and once collected by the courier, I have to wait another week for these laptops to go to a processing department, even though these parcels were not even opened, as the delivery note states which laptop is in the contents. I have since been incorrectly billed for these laptops and still awaiting a refund since i logged this request 2nd of February. I have now been told that they will allocate this amount to my Cell C account, when i specifically requested the funds to be transferred to my Bank account. My bill for Cell C does not even amount to what the refund amount is. I am also sitting with an extra Laptop which Cell C never collected. To say that this company is giving me endless problems is putting it mildly. They do not call back although I am told this each time i have called them and cases are being escalated each time.