Discover Credit Card Complaint

Discover Credit card department,

Unsolicited issuance of credit card California

I RECEIVED A PHONE CALL FROM - ON MY HOME SCREEN ON MY MOBILE DEVICE IT SHOWS THE NUMBER FROM COLORADO. WHEN I ANSWERED THE CALL THE MESSAGE STATED ABOUT MY CREDIT CARD BALANCE STATING TO PRESS -. AFTER DOING THIS THE PERSON WHO ANSWERED MY CALL WAS - AND SINGING.! I HUNG UP! ANOTHER NUMBER ASSOCIATED WITH THIS CALL- - -.-CREDIT CARD/ LOWER INTEREST RATES- - - -BOTH THESE NUMBERS WERE FROM THE SAME CALLER. I RECEIVED - CALL BUT - DIFFERENT NUMBERS WERE SHOWN