Theft of smart shopper points

Has anybody's smart shopper card been ****** and points used at pick and pay? I have been diligently going to them weekly all year, saving over R1000 points and planning to use that Christmas time when I am shortest of cash. I might have left my card at the till, but considering that my points was used that day - the assistant could even have kept it. Then once my account is linked to new card, my points are gone! Someone used it and had my ID number to get it done. But nothing was ****** from my bag, so no ID gone, so how they did it - without knowing my ID number. I think it was an inside job, and the smart shopper team just pull up their shoulders. I think they should at least say they will investigate it. Just telling me it was used on the 6th Nov does not cut it with me. I have probably spent around R50 000 at this company in 2017, and I am moving over to Checkers if I do not get a proper answer and at least some effort to find out what happened. They can probably check and see my first transactions, followed another one that was using up all the points, already suspect. I can think of many ways to investigate that, they are not even trying to assist. And surely this will happen again as the staff have figured out a way to short cut the ID system.