well done singnet...
u have lost another loyal customer. 
juz to share my wat happened,
i've been wif singnet since 1995 during the 28.8k modem days,
been dutifully paying all my bills, extending my contract after
another n tot that starhub sucks all along.
during the recent 1 or 2 yrs, there seems to be some problems wif
the physical billing sent to my home (or rather, they nv send the
bill to me at all) n all of a sudden comes the reminder
letter.
this happened not once, not twice, not thrice but abt 5 or 6 times
intermittently.
example: jan n feb bill comes as per normal, then march no bill.
april comes reminder letter.
for the 1st few times i decided to overlook it but this time is
enuff!
called up their billing department n was told there's no
discrepancies in their billing system. the CSO then decided to only
extend my deadline for my bill n nothing else. n oh btw, i juz
received my reminder letter yesterday n the deadline to pay my bill
is today, speaking abt efficiency huh?
i dunno how u guys will feel but i'm damn pissed off! 
imagine this mth u dun receive any bill but next mth straight away
comes reminder letter n this happens a few times.
it's not paying for the reminder letter that i'm pissed off, it's
the "world class" service that they r offering.
arrrghhhh... juz wanna let off some steam...