Needle sewn into my 15month old clothes

On the 2nd of August 2019 i went to ackermans in Elspark to buy my 15month old some new summer clothes. I bought a R1000 worth. On Sunday the 4th i was very happy to dress her all sassy for her cousins birthday at an indoor play area. My Child was screaming and unhappy! Not herself at all. Cone home to undress her looked like a major rash under her right arm only. Come to find there is a piece of NEEDLE sewn into her little shirt thats been scratching her the entire day! What a miserable day. I would like to know what ackermans would respond to this as i am about to go to every social media page!! Imagine how that little body felt. Since birth i always buy at ackermans! This specific shirt says "im the genius of the squad" red yellow and orange main colours. So dissapointed and feel so bad for my baby!