APPALLING FNB CARD CARD SERVICE

I REPORTED A ********** ENTRY ON MY CREDIT CARD. MY CREDIT CARD WAS CANCELLED AND A NEW CARD ISSUED. I WAS GIVEN A REFERENCE SECM*** TO FOLLOW UP ON PROGRESS. EVERY TIME I PHONE THE NUMBER GIVEN IT JUST GOES IN VOICE. I AM APPALLED AT FNB SERVICE. I AM A 66 OLD PENSIONER AT WITS END.