Bad Service from Edgars Walmer Park Manager

I would like to lodge a complaint about the bad service I received at Edgars Walmer Park. I went into the store to exchange a shoe that I bought on 26/11/2021 which was of bad quality. The shoe was worn on 2 occassions only but the heel was coming out of both shoes. Firstly the store manager tried to dismiss my claim stating that my receipt was older than 30days which means he was not paying attention, did not bother to read the slip. He then instructs the cashier to make out a gift voucher, when I asked him why is he not giving the option of a cash refund he states that the shoe has been worn which I was not disputing, my complaint was the quality of the shoe. He then states that the one can tell the quality of the shoe on the first day, when I ask him if shoes are meant to last for only one day he then asks me when when should then one tell if the shoe is of good quality or not, and telling me that he cannot sell the shoe to someone else, which I did not appreciate. As the store manager his duty was to de-eascalate the situation, not to have a debate around this situation. I believe the gentleman's name is Cedric. I am truly not happy with his approach. If he as the manager treats customers like this, how is he suppose to repremand his junior staff.