It could be repaired but would be a very diddly repair, due to size of wires.
Easier to replace, off top if head around £90-100 pound for the new part from the dealer.
Comes with 2 year warrenty.
Labour charge is no more than an hour. Any independent can do it, have to be carefull not to trigger SRS light. If independent change it they will be able to erase any faults afterwards.