Need advice on AFL headlight replacement

[Newdriver]

Hi I took my car (2013, cdti, automatic, estate, ecoflex) to vauxhall cause one of the highlights stopped working and they said that there was water inside the headlight and the entire headlight needs replaced when I picked my car up later that day I noticed water in the passagers headlight that wasn't there when I dropped it off it has now been a couple of weeks and now both of my headlights aren't working I tried changing the ballasts and it didn't help any and to buy the xenon AFL headlight is going to cost me £2000 if I go to vauxhall to do it anyone know any websites I can get cheap ones on? Also the ones I have in now are xenon do the new ones have to be xenon? Or can I get bi xenon or LEDs? I know very little about cars and this is my first one.

[exclusiv.]

Scrapyard or ebay....replace with what you have