With things as they are with customer service phone lines, and the notice on the BT home page to try their community forum first before ringing, I split the difference and asked about a BT mod looking at it on the forum.
One of the members who flag stuff up for mods to look at got a bit shirty, saying that mods had better things to do than check something that may or may not be a problem, which I didn't think was too helpful. Another, more helpful member, was puzzled by the lack of open orders... though they did point out that something must have triggered the contact from the losing landline supplier, which all looks in order. The thread's gone a bit quiet now, not sure if they're ignoring me...
Nothing seems to have altered today, still not showing any open orders. I've been googling, and found a few other recent ISP forum mentions of instances where the broadbandchecker site has not updated to reflect open orders. I wonder if this is a possibility?
>>> BTFibre 2 FTTC