Lay-bye refund - Consumer Complaint for PEP STORES

I did a lay-bye at Pep East rand mall on the 27 February 2021 but I want to cancel the lay-bye because I did manage to get a clothing account but problem is I lost my slip so the manager said it is fine I can bring a copy of my ID which I did but now they suddenly they can't pick me up on the system and they are not really helping me so I'm not sure what to do further about this situation. please assist