NEDBANK MESSING WITH MY CREDIT SCORE!!

I am highly disappointed in the way Nedbank credit card - ***** department is treating me. Ive been with them for over 20 years as a loyal customer. My credit card was cloned i then reported it immediatly and asked for thm to block it . They then adviced me i will get a new credit card been deliverd to my house but to my surprise this card to was cloned and never reached me.I did not sign nor delivery.I then mede numersous call to the call centre and they said i must speak to MRS M SHABALA in the ***** department as she is handling my case .But if i phone the phone gets put down in my ear .I now have bad credit score and its not my fault.Now i am being chreged for money that has been withdranw out of my credit card which i did not even have a card .My account is now in arrears.I need someone to urgent sort out my account