Numberplate Light Plug

[RobMac1]

I’ve had a bulb out since I bought the car 2 weeks ago, ordered some complete replacements from Ali Express and they arrived this week. Just tried to fit them at work and one wouldn’t push on to the plug, turns out the old light fitting had a corroded pin that has sheared and disappeared into the plug 
 

Does anyone know a replacement part number for the plug? Or a suitable replacement female part to crimp on to the reg light plug? 
 

Why are simple jobs, rarely ever simple 

[flumpy]

Any updates? I’ve got the same now