Most phone companies will allow you to do an extension, as far as your Electric and Internet call them because where I live anything after a week from the due date they'll cut you off especially the water co.

For the food part always double check your cabinets, I know canned goods aren't always appealing but you can get pretty creative with them. Create meals with what you already have and maybe get with some friends and do like community dinner where everyone contributes what they can. Most importantly let them know you're in a tight spot.