Continuous disappointment

One again I had the same problem wit TFG's return plicy that is not stipulated any where. I bought luella shoes at foshini galleria mall in kzn on the 18th February 2021 I have only worn them once then the heel came off. On the 27th March 2021 I returned it at foshini Gwagga centre in Pretoria and was told they cannot accep it because they don't stock luella. 1st of all I am not fami**** with the area this is the closest store to me as a customer I cannot be instructed to be going around. Well I begged until the lady whom I presumed was a manager/supervisor agreed but said it will be the store's loss and I apologized for that.

Secondly I asked the lady that was at the till to check for me why was the instalment not debited on my account this month she told me she cannot assist me with that but I could see she was very irritated.

After all these insidents I ended up buying shoes which when I got home I realised they were not the same size. Now I don't know if I should go back to the store or will I be considered as a difficult complaining customer?