Can’t Return an Item

I have been trying to return a pair of boots for the last week and a half. They are bought at Canal Walk, and I saw on their website and on Google that there was a shop at the Waterfront. Being closer to the Waterfront I decided to return the boots there, only to find out on arrival that the shop is no longer exists... The next day I return to Canal Walk to be told that I can only return the boots when the manager is present and that she is not there. I then discuss with the store assistant when the manager will be there and I agreed to come on Monday (23 December) morning. It’s now Monday, and to save myself a wasted trip, I phone to make sure that the manager is on duty, only to be told that Head Office is closed and they aren’t authorized to do a refund without head office being open and I can only return it after the 7th of January. This is appalling service, website should be up to date, your stores should be self-sufficient and your store staff should be able to process a return no matter who is on duty.