Agreed Contract renewal package not being honoured - Who can help?!

I have spent the last 2 days being messed around by the support people who are supposed to be helping on the web chat you get pointed to, and are refusing/unable to do anything to resolve the issue, Does anyone know who i can contact that can actually help with my issue please?!

Basically my current contract runs out on 3rd July, so in Mid May i contacted the renewals team to get a new deal i could afford, I was offered a deal for a 24month contract with 1Gb/s broadband and Maxim Tv + the phone line stuff i dont need or care about for £39/month. I had them email a copy of that offer over to me to review before accepting (as anyone should) It was sent in the form of a "Contract Summary Sheet" along with a link to an online portal (ebill2.virginmedia.com) where i had the option to agree to the offer which i promptly accepted the the next day and received a "We've got your order!" message confirming i had approved it, i haven't heard anything from them since, so as far i was concerned that was all sorted and would take effect at end of contract.

Fast forward a month and my billing is now saying my July bill is going to be £120! - I contacted the help chat to find out what had happened and have been told that the offer from back in May was not agreed to (I can still access the web portal and see it in fact was with the date i did it!) and that since that offer is no longer available, the only one they can give me now with that package will cost me £60+ instead and there is no way of applying the previously agreed contract to my account?!

When asking why it was not applied i have been given 2 different unacceptable answers by different support teams i have been passed between, firstly that when i approved the offer through the web portal and the order was raised, it was then denied as it was no longer a valid offer, despite there being absolutely no communication to tell me this is the case and the web portal appearing (Still) to say my order is submitted, And as such I believed the offer was accepted and was to be applied to by account when my current contract expires on 3rd July causing me to miss out on the ability to shop around for better offers easily.

and then The second reason I was given, was that i needed to accept the offer both on the online portal,AND directly with the agent who offered me the deal. This also was not communicated as when i asked the agent to send me the details of the offer via email which they did, i was just told i would still need to manually approve the deal if i wanted it to go ahead. Which again, I did via the web portal, and as you can see on the screenshot, the "We've got your order!" message should be an indication that i have done what i have needed to and the offer will be applied.

I have been messaging with members of the support team for over 3 hrs yesterday and none of them have provided an acceptable resolution, or have even tried to resolve the original issue, only saying that they will only offer packages which are available now, which would leave me hundreds worse off over this contract due to the teams failure to apply the above offer which I agreed to on the 14th May!

This is an unacceptable way to treat an existing customer, especially when they can clearly see I promptly approved the offer made to me in the virgin web portal, and when there was an apparent issue with that order, absolutely no attempt was made to get it touch with me to resolve it and i was left unaware until the next set of bills came out.

I have already even tried getting one of the support teams to raise a complaint for me about the issue, of which the only details they bothered putting in it was "unhappy with the offers available", and then immediately closed it with a resolution that I did not agree to saying "Extra info on package or product"... which is pretty meaningless!

I can see other people have had similar issues on the forum and get pulled out into a "private messaging" by a member of the forums staff here, but no resolution is ever published on these forums. Has anyone been able to get similar resolved or know how to get hold of a support team who will actually help instead of treating existing customers like trash Please?? otherwise at this stage if they do not honor the contract how can i get my service with Virgin cancelled immediately so im not getting overcharged next month and can go sign up to a more affordable provider?!

Thanks!