Hey June, I'm on the same situation as you. Tried the online chat and after 3 different agents and one hour, finally I got to one that seemed to be helpful. He said he would transfer me to the retention team so they could do it, and then straight away said that they were done for the day (it's 12.30pm in the UK...). When I pointed that out the reply was that maybe they were on lunch break, so I could wait and eventually get transferred. A few minutes later he says there's actually a technical glitch preventing them to connect me with the team, so I would be better closing the chat and trying again.
All this while trying on the phone and after 45 minutes of music on hold the call was through and the person on the other end hung up straight away.
So yeah, good luck for both of us, and if you find a way of doing it please update! I will as well.