Normal la. It is the Astro's telemarketing or upsell team doing their job.
If you are referring to the normal Astro DTH order that uses satellite dish one, then yes.
Upon upgrade to Ultra Box, it'll still connect to the satellite dish to receive TV channels, and also to Internet connection via WiFi/LAN to access to Astro's cloud streaming services (e.g. VOD, cloud recording, Play from Start,...).
Yes and no. Read my follow post to know further, by comparing with Astro PVR box and Ulti/Ultra Box.
Does your high rise property allow residents to install own dish at the balcony, or must connect to the centralised dish?
If it is centralised dish, make sure your building's centralised antenna supports PVR & Ultra Box (Technically, it's called
DCSS). If you're not sure, contact building management and ask whether the Astro centralise antenna system supports DCSS or not.
If it doesn't support DCSS, then when you tune to Astro UHD channels, you will see "Services Currently Not Available (SCNA)" message appear on your TV (no satellite signal). You can still watch all SD and HD channels.
Talking about 4K UHD TV, hmmm, Astro is having a contest where they will giveaway 51 units of 4K UHD TVs, at their UEFA Euro 2020 roadshow at Sunway Pyramid, from 1-4 April 2021.
https://promotions.astro.com.my/details/Euro2020Contest
Do note that your 4K UHD TV must be HDCP 2.2 complaint to view UHD content. If not, or if you are using non-4K UHD TV, this message will appear on your TV screen whenever you tune to Astro UHD channels:

Then that is something that you have to secretly deal with the installer.
For installers, as long you willing to pay them slightly more money, most likely they'll do it for you one.

Most importantly is, you know what you're doing then can already.
I will read your posts later.
Can I still bring the box to another house which has similar dish installed? The reason why I asked is my parents do go back to our hometown sometimes and they will bring the decoder along. There is a satellite dish installed in our hometown. It works for current one though.
Must connect to the centralized one. I will ask my building management then. Thanks for the advice!
Should be OK I supposed; should be HDCP 2.2 compliant. I’m buying Sony 55” X80H, this is the specs:
If worst case scenario, I won’t be able to view UHD content but shouldn’t affect my other viewing experience right?
About the multi-room issue, I guess it’s considered sorted out. My colleague did the same and she said she will share her installer details with me later. I guess I better stop this conversation, feel guilty.
Last question, is it true multi-room follows the main account’s decoder? If main account is not using Ultra Box then I cannot have it for multi-room?