My bill is paid now manually.
NTL rang up today regarding my outstanding balance

and the tone of the voice was a lot more settled after I told them I was on direct debit, apperently they got problems with direct debit payments not been processed at the moment so I paid manually to avoid the same problem this month. There is now also a note on my account regarding the double billing I have been getting when I change packages, I am glad I got someone who was honest on the phone it makes a big difference with me.