Extremely bad service from MTN.

Went to Boksburg MTN on Friday 3 July 2020 to do an upgrade. Sat there for 2 hours while head office was giving them the run around. I was informed I needed a confirmation of account from my bank then all the problems are sorted. Went to the bank on Saturday morning and straight to mtn. Sat there for another hour and was informed that they are struggling to get authorization from head office and I had to wait some more. Needles to say I walk out of the shop and I am not impressed at all with MTN. The staff at Boksburg MTN are great and Amore who assisted me was friendly and professional during the whole ordeal. I will be cancelling both my contracts at mtn. I received a sms from MTN after 14h00 informing me that it is approved, Upon phoning the 135 number I was told the staff who deal with upgrades do not work on weekends.