How are speed upgrades processed?

I'm considering a speed upgrade on my adsl service (with Zen). However,
in setting up the original phone line and adsl service I had a lot of
problems with BT and I don't want to give them a chance to screw up
again. If I order a speed upgrade through Zen, is it just an internal
setting on Zen's servers or do they have to get BT to do anything in the
exchange?

Seuss wrote:
> I'm considering a speed upgrade on my adsl service (with Zen). However,
> in setting up the original phone line and adsl service I had a lot of
> problems with BT and I don't want to give them a chance to screw up
> again. If I order a speed upgrade through Zen, is it just an internal
> setting on Zen's servers or do they have to get BT to do anything in the
> exchange?

They have to go to the exchange. I recently upgraded my Zen ADSL from
1Mbps to 2Mbps and it was very painless - I ordered on the phone and two
days later my connection speed was 2Mbps.

Alex