Cross trainer Tygervalley

I purchased a shoe on the 13 Dec 2019 for my fiancé at the Tygervalley branch...as much as I love the shoe his disappointed at the fact that the glue is standing out,I went back to exchange the shoes and even the black pair has the same issue..I told the cashier that his no longer interested in anything in the store as they don’t have much size 8 takkies...I phoned the customer care line and they transferred me to the manager in the store I explained to him the situation and he advised me to go to the canal branch and see if I like something there....for what as I told the manager I do not need anything just my fiancé and as frustrating this has become I do feel by law they have no right to refuse to refund the customer if the customer isn’t happy with the product I mean who will wear a takkie with glue showing...I’m sitting with a takkie and no refund...I’m disappointed as I spent my money in that store and cannot get it back