Insurance company. Asked if I'd had any motor vehicle accidents recently

I answered the call and no response

As soon as I answered they hung up

Yes they called and hung up. Seems like a automated AVR machine on the other end. If you call it hangs up as ofcourse there is nobody to receive the calls. Seems like scam to me too

Same as above, answered call, told me they were investigating a non-fault motor vehicle accident. I scoffed and they said "We have some bad information sorry" and hung up

I had a call from these people also telling me that I had been involved in a minor accident, which is rubbish. I told them they were scam artists and hung up.