Return at truworths

I wanted to do a return at Philippi the junction mall truworths. The shoe I bought at canal walk it was faulty. They didn't assist me because they said I must go back to where I bought it and return it. Asked them don't truworths stores work together? They said yes, but if the irem is faulty I must return it where I bought it. I have to waiste monyer again and go to canal walk.