The worst customer service ever

Earlier today I visited the Naartjie store in Clearwater to but tracksuits for my son but I also need to exchange sandals that I had bought in November last year because they didn't fit my son and to my surprise I was told that they can not exchange or return after 30 days. I've been their loyal customer for the past 12 years and it was the first time hearing that. The manager was not helpful at all and didn't even care about my concerns and instead offered to give .e the head office's contact details and refused to give me her name and said they are not allowed to tell customers their names. I am disgusted by ther service and the fact that they are not bothered by their customers dissatisfaction. They have a 'I don't care attitude ' this is the worst custoimer service I've ever received. I will never buy anything from them again