QUOTE(focusrite @ Jan 13 2020, 12:15 AM)
they said installation charge will be for second bill though
No, not the installation charge.
Keyword here is pro rated, Unifi bill is pay before you use, so let's say your bill is on the 10th every month, you'll be paying for your usage from that bill up till the next bill.
For example your first bill is on the 10th of January, that is the bill for your usage on 10th Jan to 10th Feb.
But let's say you install it on 4th of January so you need to pay pro rated bill of your usage from 4th to 10th January and they will add that up on your bill of the 10th January.
4th to 10th is 7 days total so 7/31 x RM129 = RM29.13 so your bill should have this much as extra.
Your February bill will return back to normal as RM99 for internet + RM30 for TV.
Of course this is just an example as I don't know when you install your unifi and when you get your first bill but that's the gist of how pro rate works.
I tried to explain it as best as I can, hope you can understand it.
If not just google pro rate, uncle google can explain better than me for sure.
If this is not the case as to why your bill seems higher than what you expected to pay then I can't help you anymore as I'm also a customer myself.