rude manager

Dear Management of Ackermans We received a gift card on Monday for my wife’s birthday and our anniversary (Monday, October 10). Yesterday we asked our son, Tagrin to buy something on our behalf with the gift card at Ackerman, Canal Walk, and he was helped. Tonight we sent him back to the Canal Walk Store with the same gift card to buy more clothing with the balance that was on the card. He was turned away by the manager, Liezl because she asked why they didn’t use the full amount on Tuesday, 11 but was helped the night before. She insisted that he bring an ID and proof of where and whose card it is. He walked back home, and we called the shop to explain and sent the ID as well as the letter as requested; he then returned to the shop (another mile to walk), and she refused to help with all the proof and the call, instead threatening him and saying we are ******* using a lot of gift cards, and she will send them to a home where they will never come out! We went to the store to go and see what the fuss was all about, but upon arrival, Liezl was too busy to talk to us and look at us while on a call and walked away. At home, Tagrin explained that Liezl made videos of him and the 2 girls that walked with him. Liezl removed the tags from the items and decided not to give the gift card and the slips of the purchases. How is it possible for someone to accuse the kids and us of being *******? Who made her a judge or a policewoman? This is a high level of defamation of character. Someone that I've never met is assuming I’m a *****. My main concern was that they were helped last night, but tonight they have been turned away with the same card with all the requirements & criteria. It’s an Ackerman gift card with loaded money on it. Please advise on how you deal with such unprofessionalism. And yes, we are customers but most times buy cash or laybys (Please check my number on the system – ***) I’m really furious about the level of disrespect, defamation of character, and the way we were treated by Liezl! We are human & customers and don’t serve this awful experience.