BAD CUSTOMER SERVICE AND ATTITUDE OF MANAGER

I bought a tshirt at Thruworths as a gift for my husband on 30 May 2020. At the time of purchase the tshirt didn't have a price tag on it. There was a small POS printout with the intem description and price hanging from the hanger. Yesterday when my husband wanted to wear the tshirt for the first time he realized that it have a small rip on the side. Today I took it back to the Thruworths store near me, which is the one in Oxford Street East London .The Manager told me, he can not exchange the tshirt and that I must go all the way back to the store where I bought the tshirt to exchange it there, because I do not have the proper price tag and the item was not purchased in his store. Even though there have never been a tag on the item in the first place.He didn't even try to contact the other branch to find out way the item didn't have proper price tags. He just told me with a attitude that I should go exchange the item in the store I purchased it and that he can't help me. I myself work for retail. I know what customer service is. The Customer Service in Thruworths Oxford Street East Lkndon is pathetic. Imagine I bought the tshirt in PE. Would I then be required to go all the way back to PE to exchange? Just a thought. This is very very bad Customer Service!!!! And the Managers attitude doesn't help.