Dischem N1 city Pathetic service !!!

On the 9th of March I purchased tablets at Dischem N1 city Goodwood branch. I bought a cold beverage with it and I had the receipt in my hand with the beverage and it got soiled. The tablets had to then be returned as it was incorrect. Because I had to be at work I asked my brother to return it as we do not have a receipt only proof on the bank account that we bought it and the tablets still sealed. They refused to assist us with returning the product the 13th of March and it was bought on the 9th March 2025. The staff members did not even bother to check on their system if they can retrieve the document or try and look for their copy of the receipts as it was less than a week ago so it could not have been that long. But the level of customer service received was pathetic from this branch. I am highly disgusted