"You don't have to pay anything for the next 3 month(s), because you've built up so much credit. And we're going to lower your monthly payments to £151.50 a month, starting on or just after 15 May so you don't end up paying for more than you use in the future.
Your new Direct Debit amount will be £80.00 a month.
We'll restart your Direct Debit and take your first monthly payment of £80.00 on or just after 15 May."
I wondered whether the new direct debit would be £151.50 or £80.
The first time I phoned BT I choose a selection that led to a menu that didn't enable me to continue with anything useful and I couldn't back out so they cut me off.
The second time I phoned I got some guy from a different planet who could tell me what I could see on screen but was unable to answer or even acknowledge my questions.
The third time I phoned I got somebody from the UK who said she didn't know why £151.50 was mentioned but I would only have to pay £80.
It would appear that BT don't know what is going on with their own systems.