Superb 2014 Interior Fan Part No.?

I have the (fairly common it seems) interior fan failure on my 2014 L&K. I've read a few posts here saying its not that difficult to sort yourself but can anyone confirm the part number please? I've found a couple of eBay but they dont seem to be compatible.

Also, if anyone has any tips on how to get to the fan it would be helpful. I've read a few threads on here about getting to it under the passenger dash but any extra details would be very much appreciated.

Dealer wants £75 just to investigate and cant even see the car until 2nd week in December!!! They said they had never heard of the issue before but I'm calling BS on that given how many threads on here talk about the fault. 

Thanks for any help.