Very Poor Service from UNISA

I cancelled my course and requested a refund in February from Unisa. I have sent them 9 emails with the required documentation and to date have not heard anything from the Finance Department or Student Affairs or anyone from Unisa. I know there was a lock down but surely someone at Unisa should be able to work from home and at least respond to my many emails? I would not recommend anyone going to Unisa ever.