Bad customer service

I bought school shoes from your Eastgate branch. I sent the school shoes to my sons who stays at ennerdale the shoes are too small and I have the receipt I asked my grandmother to take the shoes to your ennerdale branch for an exchange and said can she ask them to do a reprint o fthe invoice or I can email the receipt the last who was assisting her was very rude and the behavior was totally unacceptable. I askes to speak she was rude to me as well over the phone. Her tone of voice and the manner she spoke to me was bad. One of your African ladies who was working there on the 14 February 2021 she did not have a name tag on . Can someone look I am highly disappointed at the customer service that we received