Chesterfield Borough Council is warning residents about a scam which is doing the rounds.
People have reported receiving a call from someone claiming to be from the council and asking for bank details to give a refund on council tax.
A council spokesperson said: "Please be aware, this is a scam.
"Please do not give bank information to cold callers.
"If you receive a call, you can report this to Action Fraud by calling 0300 123 2040."