UNBELIEVABLY SHOCKING SERVICE

Cannot believe the lack of assistance! My cards were all ******, had my store card blocked. Was told to collect my new card from the store (took about 10 days), with a copy of my ID, which I did. Tried to use my new card today - can't as it was blocked! Store phoned head office or wherever, waited about 15 min for them to advise that perhaps they could unblock it, I could use it, then they could block it again - WHY?! Surely your system is sophisticated enough to block a card based on the last 4 digits of the card? I was told they were worried whoever had my card would try to use it again. Does this mean one actually has to close the account and open a new one to prevent this from happening? Tried phoning from the office to clarify the situation and after speaking to the gent for about 5 minutes, he put the phone down. SO UNIMPRESSED WITH WOOLWORTHS RIGHT NOW!