Don't have problem with modem's modulation speed. It reads 1536(DL) 512(UL) everytime I check.
Oh yeah, just read TM's customer care FAQ. Just didn't want to look stupid when I lodge a complaint >.>
Here's what I found, FAQs #39-41.
#39 Will I enjoy fast speed for p2p?» Click to show Spoiler - click again to hide... «
Throughput for P2P application (eg. Kazaa, Bittorrent) is subject to peers (seed) availability and their throughput as well. TM does not have any control over peers availability or throughput.
Owh okiee! That means I can use p2p right? RIGHT?!! IT'S GONNA BE FAST RIGHT?!!
#40 Why do I experience slow p2p even though there are lots of peers available» Click to show Spoiler - click again to hide... «
P2P application uses a lot of bandwidth and can significantly reduce the connection speed of other users especially during peak hours. To ensure optimal broadband experience for all users, TM has imposed prioritization during peak hours that would restrict throughput for P2P application.
Ehhh?!! U said TM does not have any control over peers availability, WTH? U blocked 'em! FFS. OHHKAY! JUST FOR PEAK HOURS!
#41 Why TM is offering unlimited packages and at the same time limits the amount of trafic» Click to show Spoiler - click again to hide... «
Unlimited means that there is no time capping for user to access to the Internet and it does not mean that user can download/upload an unlimited volume of data.
WTF?!! Now I can't p2p?!! U want me to pay for RM88 Just to surf your site right? I mean, WOW!, yours is the only site that can load faster than a lightning! Congrats!

After reading that, I decided not to file a complaint. Yeah I know, I rant too much. XD
They are a money-grubbing profit-driven self-contradicting scum-sucking monopolising lying bunch. And that's all I have to say bout that hehe. From all of the money they've been making off of us, they should be able to at least upgrade equipment without stressing their salaries, not to mention they should probably allocate some to train their personnel more. At least try to make it the best consumer service before trying to milk the goat to death. It's like beating a dead horse when it comes to these guys. I sincerely wish things change for the better, although this is an unlikely scenario.