Driver's Centre Armrest (Octy MK1) - 3B0864209AC

Good Afternoon to all you lovely people!  

I just received the centre armrest in the post  (Part No. 3B0864209AC), and it appears that it's missing the fixing bracket.

Looking on t'internet, I can't find any brackets for the Octy MK1, however there are plenty available for the Golf MK4 / Bora:

Part No.  1J0864273B

https://www.ebay.co.uk/itm/VW-GOLF-MK4-BORA-CENTRE-ARM-REST-ARMREST-MOUNT-PLATE-BRACKET-1J0864273B/122967323045?hash=item1ca16c71a5:g:skcAAOSwLgNahDRd

Part No.  1J0864273C

https://www.ebay.co.uk/itm/VW-GOLF-MK4-BORA-BEETLE-97-05-CENTRE-CONSOLE-ARM-REST-BRACKET-STORAGE-1J0864273C/183111835208?epid=651212718&hash=item2aa250de48:g:k~EAAOSwmWFano~I

My questions are as follows:

• Are there any differences between the two part numbers? (B or C)

• Would these be compatible for my Octy MK1 armrest? (Part No. 3B0864209AC)

Many thanks in advance of any replies!  

YA.