How to glue heater wire to rear windscreen

[effingpot]

My rear windscreen was removed for a respray job and the garage yanked the wires off that connect to the demister wires.
They "soldered" them back on using a windscreen specialist but when I popped open the rear window to take a look one dropped off again.
I think I'll stick it on myself with some electrical glue but don't know what product to get.
I did look at wire glue but it says it's not suitable.
Any suggestions?
Thanks
Mike

[effingpot]

Thanks - I finally had a chance to take a photo - it's a grey, rainy day so not that clear.



The yellow blob top right is where the connector was before it was yanked off. it's where I need to stick it back.

the Silver thing centre bottom is the connector itself. There is a decent surface to get some glue on but it will sticking mostly to glass.

Basically I need a good bond and obviously the electrical connection to work. the wire glue I was going to get is not suitable so need a different solution.

Suggestions welcome
thanks
Mike