What leads you to believe that you will be going to China on Monday?
Maybe you will be staying in Wanchai?
PCR tests here were just ~anywhere / anytime ...especially in Community Centers for locals....
yada yada yada...
Those days are gone and
even for 5th shot in Dec (some people/psychos enjoy that) I (SO too) went to private practices...that prepared for welcoming Mainland tourists interested in BioNTech, so:
A)
Better ask at airport for intel upon landing. Generally they were quite good.
B) 2 places in Central that were equipped to "vaccinate" masses and therefore should be equipped too for testing (on staurdays):
- Virtus Care, 5F, Virtus Mdecial Tower, 122 Queen's Road Central
- Humanity & Health, room 1401-1402, 9 Queen's Road Central
so relying on Virtus of Humanity for testing should be ok.
No clue about TST.
I don't think that any bar or short time hotel in Wanchai provide such service...but that does not prevents you from EXPLORING IN DEPTH the area.