i still feel if you stay within your total allocation they don't have legs to stand on. lets take a 5 gig account as an example: in a normal month if their capper is working correctly, they let you have 5 gig of blended plus 20 local gigs after that. so the total allocation is 25 gig per month. now it happens you racked up 20gB on a blended session while they were out of whack and now everything's fixed -you're capped and back on local.
this is where some ppl say aslong as your local usage on their tracker does'nt exceed the allocation, you're entitled to all of it........".no worries and 'ol ek sè!"
i disagree because in the T&Cs (under the 'Monitoring Bandwidth:' section) they're quite sticky about it being your responsibility to monitor your own usage along with the tracker. in my opinion as per mentioned example; you're entitled to 5gB more. you agreed to keep track of how much is coming and going off your computer. you should have assumed when you would normally cap, so good luck explaining it was your intent to use more than you're se'posed to

@mith as for this not happening often, do a search for 'telkom cap' on these forums and see how many past threads there are. granted, it's rare for this anomaly to last this long. usually it just lasts an hour or so, and sometimes you'll get full int access even-though the tracker shows you're on the local session, that it goes by unnoticed by the masses for the most part.
second to last thing

experience has shown us it's best not to talk about these things in public. popular threads attract the attention of el telekomicia diablo's minions. and that leads to it being fixed sooner rather than later.
finally (i promise), don't be greedy guys. greed is prolly why cheap uncapped turned out to suck as much as it does