Pick n Pay Online shopping

I am a Pick n Pay Smart shopper card holder and tried to sign up for online shopping. When trying to change my password as I haven't been able to log in to the service and having spoken to and given all my details to various agents I get told that somebody else is registered under my E-Mail address and they can't register me. I then asked who this so called person is and they can't divulge this information. So despite having all my details and address, Name and surname I.D number ,smart shopper card number etc. I can't register for online shopping. What kind of nonsense is this ?!!!! You may even find that this other person is me on an earlier attempt to register. Nobody has ever been able to get my card details .If it was a credit card or some bank account I can understand but this is a shopping card where you have to pay upfront. Good heavens !! All this modernization and so called security is killing us !!!