Volt upgrade canceled my upload add-on and i just want it back.

Hi,

So I had Virgin M500 with the upload add-on installed on the 16th of April and everything was going great until the 28th when my the Volt upgrade happened and my new speed went from 500 up and down to 1gbps down and 110mbps up.

I phoned Virgin and the first 3 reps couldn't add the Upload Add-on back to my account. The 4th at first denied the existence of any upload speed add-on with Virgin and that the fastest upload they did was 110mbps before eventually transferring me though to rep number 5. This guy tried to add it but the computer wouldn't let him before eventually saying the only way to get the add-on applied was to start a new contract which would lose my new customer discount and would be £6 more expensive than my M500 with upload add-on.

I was transferred through to a complaints manager who eventually said that she would be able to sort it but as the profile had just changed it would be 24-48 hours before it would apply but that she would phone be back on Thursday to confirm the resolution of the complaint.

It is now Saturday and the upload add-on is still not on my account and the promised call back did not happen. The only communication I have had since Monday from Virgin was an email stating 

and that my new price is what i would have payed for m500 without the upload add-on.

I don't really fancy spending another 3 hours on the phone to Virgin so I'm hoping someone here has any ideas on how to get this resolved.