Credit card ***** by standard bank

I took out a credit card with standard bank and my daily limit was R1000 however it shows that i have drawn R3000 on the day and some transactions i was told was declined some i have slips to prove it was declined and still they say it was given. I have logged complaints and even went into two different branches. I spoke to my personal banker who is also not bothered with my account. I am at my wits end. They are saying their system shows it was given and they say they will investigate but then they close the all the following day. This is as they explained they will have to speak to the other banks to do an investigation that clearly was not done. I stopped the card and they sill have the new card that was requested but the charges are still going up even though i cannot draw any money and i have done no transactions. There is no funds available on the cad but the amount is just getting bigger. I only have this card for 2 months. My personal banker is Sisonke Isaacs KC Branch