Brian Reay presented the following explanation :
Are you on a fixed priced deal?

Yes, fixed..

Certainly with all the deals I've had, you didn't have to accept the
suggested change to DD. Also, any 'credit' could be reclaimed- once or twice
we've ended up with money in credit due to periods travelling etc.


Their monthly bills keep showing me owing them, despite the increased
DD.

There just delivered quote for next years DD for the new tariff, shows
my present tariff DD as £75 per month, whereas I was advised it would
be increased to £92 from last month. All very confused.

Its Bristol. They have just taken their consumption comparison pages
(last year v this year) down, because they suggest it is confusing
their customers. Not half, it has no relationship to my own spreadsheet
(last year v this year) comparison.