Return for belt refused

I bought a belt in Westreet Durban and later realised that the belt was small. I returned it to Davenport Miladys and the Manager told me that they do not do returns on belt however I can take a bigger belt as they have XXL. Otherwise I can try and return it to West Street store where I bought it.

This whole story does not make sense to me. Can someone please enlighten me.