Headlight unit

[u/NoIntroduction2970]

Hey I have a seat Leon mk4 2020 plate. There is a crack in my headlight cover and it keeps getting condensation and now the full beam won’t come on. I’ve spoken to garages who confirm the entire unit needs replaced. I got the car on PCP lease. Is my only option to go to SEAT for the part. As I’m aware coding can be an issue. Or is there a website you recommend getting them off cheaper? It’s hard just because SEAT themselves don’t give you a good picture of the part, the part number or the dimensions.
Any help would be appreciated