FAKE litter wardens have been trying to scam £150 cash fines.
The two men have been demanding instant payments in Bridgend, South Wales.
Council deputy leader Hywel Williams said: “We are urging people to watch out for the scam. Genuine enforcement officers will never ask for a cash payment up front or for a personal mobile number.”
Last month one passerby was targeted by the conmen who took their contact number and later demanded extra cash on the phone.
Mr Williams said: “Genuine enforcement officers always wear official ID badges and lanyards and will never ask for a cash payment for a fixed penalty notice.
“Instead, officers will issue a ticket stating details of the offence, payment options and online, telephone and postal contact details.
“They will never ask for cash up front or for a personal mobile number.”
Real enforcement officers would issue fixed penalty notices of £100.
