Super glue and bicarbonate of soda. Its not pretty but it works.
Sorted with the. Soldering iron. Not pretty but Lewis rain or and I'll tidy up at wkend. Ta
Can you get a picture of the damage?
It could well be mad enough to work.
Best plastic welding I've seen is Delboys Garage on YouTube.He uses paper clips as said above, but uses cable tie is the 'solder' to fill and glue the gap.Works a treat and remains flexible which a lot of other fixes like superglue/bicarbonate doesn't.