My son said his mate who is a carpenter had a phone call, the caller asked if he was operating a radio in his workshop (place of work) he said yes. The caller said he would be invoiced for £250. He works alone, I assume this is related to entertainment licensing, thought this did not apply if it was for your use only. I assume this could be genuine and not a scam. Is driving a delivery van for example and listening to the radio a similar situation. I thought the station broadcasting paid the licence royalties.