530i Rear bumper

[Stevie T]

I have a towbar fitted to my 530i & want rid!!
It is a Witter towbar & has various balls etc...
I have removed what is visible & now want to remove the bracket itself.
Can anybody let me know how to remove the bumper & if I will need to purchase any fittings.
I have already got the pull-out section for the centre.
Pictures would be appreciated if you have any!!

If anybody wants to buy the towbar when removed let me know - otherwise it's eBay time!

First post so please be gentle.