Applying for internet service!!! All providers!

my address is: 6-20 Po Tuck Street, Po Ga Building, Western.

I ask one of the HKBN provider and he said my building doesn't have coverage!!!

Can HKBN sales make sure if i have coverage in my building, and if there is coverage then which plan and what is the package?  I asked Netvigator store and they said my building only have 6M service, can i know how much it is and what package is included?  

Thank you so much!!! please reply ASAP!