I posted about this a little while ago on someone else's thread but it's now nine months since I started a new job - which had a six month probation period - and I am still on probation. I have never been formally notified of the company's intention to extend the probation.
When I wrote in September, I still had a bunch of meetings to arrange with random people it was deemed I needed to meet in order to complete my probation. My line manager has now made some attempt to arrange them and basically no-one showed up. (One guy did, for 10 minutes).
I've decided I've had e-bloody-nough. I'd like to present evidence to them that they haven't extended my probation so I'm not on it any more. I've come across this but obviously it is just a blog so not really chapter and verse. I think this probably indicates what I want (the probation bit is slightly below where this link will take you) but any advice would be welcome.