What customer service?

I purchased a pair of shoes on the ONEDAYONLY website. It was delivered and everything was perfect up to here. The shoes did not fit. I started communicating with ONEDAYONLY in this regard on the 27/07/2020. I got a service ticket number 937661 to which I rep**** and then received a second ticket number 946967. The one reply was and automated acknowledgement and the other seems to have been written by an actual person. Despite my further requests for assistance (5/8 and 18/08/2020) no one is coming back to me on how this matter will be resolved and what procedure I need to follow to return these shoes. I find this to be pathetic customer service, even if they are short staffed due to COVID19 issues then they could still used their computer automated system to send emails to say we are still aware of your unresolved issue. CAN SOMEONE IN THAT ORGANISATION PLEASE CONTACT ME!!!!!!!!!