No reprints of slips

I made a laybuy at Ackermans but lost my receipt, I asked them to re print my receipt incase I need to exchange anything in the case that it doesn't fit. The cashed was very unhelpful and told me thier system does not allow them to reprint slips and if I need to exchange I will have to take it for the price the system scans. This is unacceptable as I myself have worked in many retailers and especially with a laybuy where the company has the customers details a reprint option should be available. I am very disappointed as I will now be cheated out of my money