We have been chasing why our favourite telco keep just cancelling orders for an FTTC line. Eventually found the cause - the email address provided to them as part of the end user contact details has a limit of 40 characters.
To be fair, it is a documented limit, but we did not apply it, and they did not either, accepting the order and then, every time, canceling the order a bit later with no explanation as to why...
How mad is that? Oh well, at least we know now. Well done to Shaun for spotting it.
Of course the end user may want his personal details correctly recorded as per the Data Protection Act, but we'll see how that discussion goes later :-)