Pep store at Somerset Crossing security

Today I send my son to Pep at Somerset Crossing to buy something for me. One of the security sent him away, he did not allow him to enter instead he showed him a different store. I went in to find out about what happened. I asked him if is it Pep store rule not to allow kids in and his answer was Yes and it was changed recently, I asked why there are signage out side that states what he said. I got upset when he said to one of the guys that I came in with an attitude. He was very very rude I ended up being rude to him clear he was the one who had an attitude. Had no interest on calling the manager because the store it's self service wise is very poor operating with one till month end ques are very long. They even open late some days.