Phone 15 days old get hot does not ring have reset talked to you tec same no change told that is past the return date when did it go wrong it works to make calls but receive calls no chance it's about as good as a chocolate fire guard?
Welcome to the community and thanks for posting. I'm very sorry to hear your new Sony M4 is having trouble receiving calls.
I see the agent was referring to the 14 day money back guarantee as outlined here in section 4. This doesn't mean the problem can't be rectified though. Could you please answer the following questions:-
When someone calls you are they able to hear the ringing tone?
When someone calls you do you notice your handset flash or vibrate at all?
Have you set any numbers up in the 'Call Rejection' list?
I'm also a little concerned when you say the handset is getting hot. Is this while it is charging or when it's unplugged?