Useless Customer service from LEGIT

I purchased an item from Legit Store in Galleria. Unbeknown to me that it had a security tag in it, how I made it out the door without alarms sounding. Anyway, I packed the packet straight into my bag as I knew I had purchased the correct size only to put it on whilst away and have my entire evening ruined as I could no longer wear my garment. Way to ruin an anniversary Legit! What I would like to know is how on earth are staff not trained to check garments for security tags that need to be removed once it has been purchased. I am thoroughly annoyed as I was the only person in line to pay so it was not even a situation of them being rushed. Just a total lack of care! To make matters worse I message their Facebook pageon the 17th of December to make them aware of my complaint only to have them read my message the following day and completely ignore me! What kind of nonsense customer service is that. That's the last of my money you will ever see Legit!