Warnings have been issued by Test Valley Borough Council after receiving complaints about people offering waste collection and tree maintenance services.
The council have told residents to be wary of the individuals and that in no way are they working for the authority.
The council said on social media: "We can confirm that these people do not work for the council, and we will never cold call you regarding waste collection or tree maintenance."
Anyone approached by the individuals is advised to check that they have a waste carriers licence.
The authority said that anyone who doesn't check, can leave themselves liable to prosecution.
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