Disgruntled Smart Shopper card customer

I possess a Smart shopper card and I build up my funds and when its about R500 I use it to buy a big or expensive item eg half lamb .On the 16th September I discovered that my funds on my card had decreased from R270 to R18, when I checked my till slip .I went to Glen Garry PnPay 's customer service ,where I was shopping, They phoned Smart shopper and they said somebody bought food to the value of R156 on Saturday 12th September at Pn Pay Hypermarket and that I must go to them and tell them what had happened .I now have been to the Hypermarket in Brackenfell 6 times and every time the people on duty at information tell me they will look at the video footage and get back to me at a certain day which they never do .When I get there the next time ,you stand and wait 10min at the information desk to get the person that deals with my case to come down to speak to me .They said I must not use the Smart shopper card as it could be used by someone with the same number Smart shopper card as mine .They said at one visit of mine that a lady with braided hair used my card .She pays the the one card for certain items and then produces another card to buy other items .They once again promised to get back to me at a certain day which once again did not materialise .I spoke to the manager and he said he would make sure that 5 days later on Monday the 28 th September, the lady that was at the desk during our discussion would phone me with news It never happened .Mandy ,one of 3 ladies that had made hollow promises said that a lady dealing with these type of problems will be back from leave on Monday the 12th October and that she will get back to me with an answer which one again did not materialise .She said that I must not use my card and said that a new card would be issued to me ,now, but once again they could not assist me as they had no cards at the store. Mandy promised they would give me a new card on the 12th Oct .Once again I was disappointed by the store on the 12th as Mandy was not available and the other lady and manager were once again poor in there helpfulness. I proceeded to say that I needed an answer about my card by the next day otherwise I would be going to Hellopeter.I have now been to the Pick n Pay 6 times ,wasting petrol driving there , not being able to use my card for the duration of the query +_ 3 weeks , being made a fool of by 3 lady workers as well as a manager that is not doing his job properly.It is now the 14th October and I still have not got a call to say that I will be getting a new card with a voucher for the amount of money that was on the card .This is the worst service I have ever experienced from a store and I will never ,but never recommend anyone to approach there customer service for help or assistance in anything as there customer service is absolutely shocking .I am a very disgruntled P n Pay shopper at present .