Citibank Debt Collection Complaint

Citibank Debt collection department,

Credit card Cont'd attempts collect debt not owed Debt is not mine Florida

I 'm receiving calls multiple times a day with only a voice message left by Citibank to contact immediately. When I call they have no record of mine name just phone number. I 've asked repeatedly for them to stop calling but they tell me they can not do that. Numbers involved : - - My registered phone number is - they above numbers call me multiple times a day automated. Please help make them stop!