Normally, downgrade can only be done at tmpoint. So, i think tm is wise enough to not allow customer downgrade easily using the portal

It does not sound fishy if you already lose 30k customer to your competitor:
https://www.malaysianwireless.com/2019/09/m...-tm-unifi-2q19/

Nah, i dont think you will get 100Mbps as your upload only 46Mbps.

Last 2 year I help 1 VDSL customer upgrade to 50M after he agree he will not complain if not get 50M and at least get 40M. But he keep complaining to TM and MCMC as the speed only 42-46M. Then TM decide downgrade him back to 30M, he begging me to help him get back 50M package.

So these type of customer that prevent TM from promoting the 50M and 100M to VDSL customers

I dont think so as starting last month they start implementing discount for the hypptv.
So in bill will become 129 (internet) + [30-30(hypptv)] = 129

You probably register before Sep 2019.
Those register Sep 2019 onwards will get 129 (internet) + [30-30(hypptv)] = 129

Yep, RM129 (internet) is 100mbps

Im writing an example only. Different promo get different price from tm

FTTH=Can
VDSL=NO
But got installation charges i think

All 3 my unifi account has been converted

No sms, no call. Just check unifi.com.my portal

TM will vacate the port without touching the DP (remotely done by system).
So, when installer come (for new person that take the vacated port), the installer just unplug the the fiber connector at the DP box

Can be done, but 2nd unifi account must be under different name (can be father & son or husband & wife or housemates)
But I think your new house is under what tm call it as smart partnership. Normally for this type of premise you need to install the free unifi first under different name than the existing, then proceed to relocate the existing. If you install the existing first, you will lose the free unifi version.

Also for this type of premise, the installer only do the connection inside your premise as fiber from DP to your house already pre-installed.
Depends on developer, usually developer only pre-installed 1 fiber from DP to your house. Then if you want to install 2nd unifi, then installer need to pull second fiber from DP to your house until inside your house. So, this may cause more than 1 appointment as tm already configure cheaper rate to the installer. They need to reconfigure normal rate, then installer will proceed to install the 2nd fiber