Watchdogs have warned people in Norfolk to be wary of anyone calling them claiming to be from Dyson.

Norfolk County Council trading standards officers say the caller will offer to carry out a service or repair work to Dyson machines, often claiming a special offer price as low as �20.

Consumers who agree to a visit often end up paying up to �150 for parts or other work the engineer says is needed.

Dyson advise that a genuine Dyson engineer will not come to your home unless you've called Dyson; they do not make cold calls and never pass information to third parties.

Trading standards advise people to be wary of any offer made during a cold call and not to buy items or commit to visits if approached that way.