guess i should mention how to patch it .. with a soldering iron.
cut a patch slightly larger than the hole and trace around it's edge with the hot soldering iron .. you wanna melt both surfaces together.
Cut a few long thin strips of plastic to add to and fill the joint if needed, as if you were stick welding. If you see lots of smoke the iron is too hot.. move faster or use a variable light switch to regulate the iron's heat.
btw, they do make hot-air stick welders for plastic.. the hot air prevents overheating..