Well, don't go back to Sky if you don't want to! Accepting that you would have preferred a better experience with Retentions, that's now done. You can either use chat or phone, just accept that you have to start again with them. It's possible that the offered deal was noted on the system, may be visible to the agent, and the agent may say "no problem, if you'll accept the deal I'll put it through", in which case job done, it's just I doubt that will apply.
In terms of the joys of simply getting through to a human - well, you're a VM customer, you know what to expect.
