AFAIAA you don't loose access to the suppliers helpline. I recently spent
a merry afternoon on the phone to Southern, Scottish & Southern and Ebico
trying to work out why the rates that Ebico sent at the last price change
were not the ones on my bills and the DD discount had effectively gone.

Thanks for the heads-up, i'll have to keep my eye open for that one...

Your contract is with Ebico though, so you "should" only have to deal
with them for all billing issues...