Selling of damaged goods and Pathetic service rendered

I had bought my 15 month old 3 pair of shoes from WEBBERS in Randburg mall on the 29th November 2019 (on a Black Friday special) "Soviet brand" and had saved them for the festive season holiday for him to wear from the 16th December and on the very same day the shoes got worn out. The sneaker outsole detached from the tips and the sandal upper patch does not hold. I took the shoes back in January and was told that they shoes are to be examined by the head office and they'll respond within 2 days. 2weeks passed without any response, I then phoned in and spoke to the supervisor who was still waiting feedback and promised me a callback but nothing was received. Another week passed, I phoned again and spoke to the manager who said he'll get back to me by end of the day and nothing again. Only after 3days the manager decided to call and tell me he's still waiting for the head office to come back to them.

I do not understand what's so big and that important that takes over a month for them to accept their damage goods. And they telling about the white guy who is the decision maker whom they do not know when he'll decide to credit my money