Lay buy

Im very angry and disappointed at the service I received from Lucy at Phola Mall Kwamhlanga on the 29th of June 2022. Went to the shop and saw this beautiful Mickey mouse set (R179) I did not have enough cash to buy it, but then i remembered Ackermans has a Lay buy option so thought to myself I can lay buy it then come finish it off the following week. So i take the set and go to the tills. When i got there I was assisted by Lucy. I tell her I want to lay buy. She says to me "this only" ? I said yes, is there a problem? She then told me I cannot lay buy the set as the minimum value for a lay buy at Ackermans its R300. I was surprised and ask her is that the Ackermans rule she said yes. I asked her what's the reason for that, she said its because small items get lost in the storeroom. This was very shocking to me, how do lay buys get lost in the store? So i asked her so what do I do now because i want the set, she said if I lay buy it the set is at my own risk because things get lost at the back there so when I come back and dont find it I mustn't blame anyone as this is a risk im taking on my own. What kind of a service is that? How does an cashier tell a customer that things get lost at the store. Whats the point of securing clothes then they get lost? I had to go make unnecessary debt from a friend just to buy the set. So dissatisfied and unhappy.