Bad service and potential Makro debtors card security at Makro Alberton

Cashiers doi g this busi ess a lot of damage due to slow non productive service and waisting customer time. Makro also makes copies of customer Debtors Card. This card is similar to a credit card, but just for Makro. They say it is for "security reasons" How on earth do you make copies of a credit card for security reasons. This has the potential to cause security issues!!! I spoke to 2 different financial advisors about this but they insist that it will not cause *****. Ek do not agree at all.