How the hell do you phone the retention team and cancel now??

So I have a good deal with virgin, for £75 a month (apparently because they appreciate my 7 years with them) In April it will go up to 215 as my deal ends, I went to renew and they told me they could do me a GREAT deal, they'll take away some channels and lower my netflix, and only charge me £140 a month.

They can shove that. So I told them I'll leave and I got told to call the retention team.

How???

150 from my mobile phone won't ever connect anymore, and phoning    0345 454 1111  as suggested on the website takes me to a god damned automated service which starts trying to make me pay my bill online or get a text to pay it online. No options to speak to anyone.

This simply is not good enough, how do I phone them???