Best price contract renewal issue.

Morning,

I accepted the best renewal price which Virgin sent to my email. Pre contract sheet received in my email stating the new price after accepting. New price was slightly higher than my current offer but was happy enough to continue for another 18 months.

I then notice I had an email saying I needed to ring the team as some information was missing to finalise the new "order".

Rang them this morning for them to tell me they can't honour that price now and the best price they can offer me was £116! Over £30 more a month than I originally accepted.

Of course I was far from happy and asked for them to cancel some services and I would just stick to just broadband. 

The even bigger kicker here is they have now told me the next bill will be £190 nearly 3 times my normal bill. They stated it will involve the none promotional price. The 30 days change exceeds my promotional period. Which my argument to this was, I accepted a new price and contract in advance so it should roll straight into the new contract. Which I have done every time at the end of my contract.  Now Virgin made a mistake it is me who is taking a hit. I find this highly unprofessional and insulting. 

I would like this looked into please asap.

Any other information would be much appreciated.