Citibank Debt Collection Complaint

Citibank Debt collection department,

I do not know Cont'd attempts collect debt not owed Debt is not mine Tennessee

I have received calls from multiple debt collection agencies, most recently " - '', on behalf of " Citibank '' for " - ''. I have no accounts, nor have I ever had accounts with -. I have an account in good standing with Citibank with a - balance. The collectors give my name and call my cellphone, but they do not have my address and they give a different social security number and age/birthdate. This is clearly a different person they are looking for. I am not sure where they obtained my cellphone number. I have been explaining this for several years now. I would like this to stop.