In all honesty if it were me, then I'd wait for Bob to get back after the xmas hols.
It's like banging head against a brick wall over there. I sent a screen cap of another instance where a GEA test was showing incorrect data as proof of the fact it does happen.
The reason I suggested an hours power down, is because that's what cleared the other one to show correct data.
Although its annoying, its not service affecting and at least you have got a connection. Even if they did decide to act, its unlikely that the engineer would be with you before xmas. I therefore prescribe a glass of liquid refreshment and enjoy the next few days with your friends & family. Seasons greeting and all that.
Then afterwards, hopefully Bob will be able to pick up on the message you sent.