It can't only be me who doesn't always check their NTL (or other) bills right away, can it?

Aaaaaanyway, this time I did, as I was keen to know what I was being charged for this month - it varies from one bill to the next, and I knew there was a new billing system in place.
First up, wrong name on the bill. Also charged £4 for non-direct debit payment.

Been with NTL with the same bank account and DD set up for absolutely donkey's years.
Fortunately, David at the call centre up North was not only clued up, but a pleasure to deal with. However, he said that the system was showing an incorrect name (should be M. ****** and was coming up as Ma. ****** ) and that my direct debit had been cancelled, and that was really all the new system would let him know.
We agreed we'd have to chalk it up as 'one of those things...'.
So, as the new system wouldn't let him reinstate the DD, I had to pay by debit card, no big deal - he added £4 credit to my account and set up a new DD.
I checked with the bank and they hadn't stopped the DD, and it was still set up on their system. Now, David assured me there would only be ONE payment taken (my debit card one) - but said I needn't cancel the previous DD as the new one will just take over


- this worries me.
Common sense says I should now have TWO DD's on my account, but apparently not.
I'll wait with baited breath until the 15th of Jan and check to see if the DD goes out as well I think. Hard lines if it does I suppose, as in my experience, NTL don't refund however much they take by mistake - they just credit the account..
I was also getting a discount due to a previous NTL error which seems to have been stopped too, despite being told it was for 6 months.
I was on hold to 08000529403 for 70 minutes before I gave up ( I wasn't *that* desperate - I had it on speakerphone while I made the tea.

).
Ho hum.
My point is this - check your bill immediately if you don't already.
I imagine if I'd have been out of the country for a couple of weeks as I have been every Xmas bar this one, I'd have probably ended up with a late payment charge.
Happy New Year to everyone.