Guy with an Asian sounding accent called "John" informing me that this was a Government scheme and I was one of those chosen to receive a free boiler replacement (I only had my boiler replaced in Dec 2018).
A guy in Birmingham. Had a few calls from 01213141391. He told me I was wasting his time? Even though he called me. Just play with them as long as you can. They can't scam anyone that way. Even though I have asked to be removed for his list. By the way he calls himself Rick..