The new system is designed that the losing ISP has full power to block transfers. It relies on that power.
Just as they can stop a line transfer now. And we do see people on here getting invalid line move notifications due to a simple clerical error elsewhere and a wrong number being entered. A typo is sufficient.
However instead of the user having the power and comfort feeling of having set a No-migration marker, it requires the customer to receive at least one of the two notifications of the forthcoming migration and contact them to stop it. Plenty of people take out-of-the country trips of more than 14 days. Even a fourteen night holiday involves 15 days, when on return you aren't looking for emails or bothering with a huge pile of mail a neighbour has kindly built for you.
Users do not always see notifications. We both know that. 99.9% of the time, they do. But 0.1% of Andrew's 9 million is 9 thousand.
Plus - your post doesn't make sense. If the losing ISP can't block it at the customer's request, what's the point of the notification letters. Particularly theirs?
Edited by RobertoS (Sun 21-Jun-15 23:18:35)