Old School SA has clearly gotten too big too quickly and lost sight of what matters in building a brand

I purchased a SA Supporters' Jersey during the Black Friday Sale as an early Christmas gift for my Dad. He tried it on and unfortunately it didn't fit. I reached out to OS to exchange it for one size bigger and they refused to in terms of their Black Friday T's&C's. I find this really frustrating and I feel like Old School SA has gotten too big too quickly with no regard to the circumstances of the individual customer... Now I'm stuck with a jersey that doesn't fit and because my Dad was expecting that as a Christmas gift, I have to purchase another one and fork out an additional R1 700 that I hadn't budgeted for.... Whereas, on their side, they have the larger size in stock, it wouldn't be an issue for them to just swap it for me. I feel like they're being unnecessarily difficult. I have purchased from them a number of times in the past bust after this experience, I won't be purchasing from Old School again.