[wusta]

Hi everyone new to the forum and seeking advice. Had the car about 4 months and done around 4k miles recently when driving(around town in all instances) the car suddenly loses all power and all dash lights come on.
On pulling over and attempting to restart the engine will crank fine but refuse to start. However if I turn off the engine remove the fob lock and unlock the doors it starts first time and off I go. I have tried bumping it when coasting along but it refuses to start

It has done this once a week for the last 3 weeks

My assumption is that it is a fuel supply problem but what is causing it?

TIA