The older buildings here run parcel rules that are unlike the modern towers north and east of them, and they are inconsistent from building to building rather than standardised across the district.
Some will not let a rider past the ground floor at all, which is workable. Some accept nothing on a resident behalf, which is not, and means you have to be at the entrance. A few require the resident to come down and sign in front of the guard. None of this is a problem if you know which one applies to you. All of it is a problem if you find out while a rider is standing outside with an insulated box in Manila humidity.
Retatrutide is the least heat-tolerant compound I write about on this site, and this district is where an avoidable twenty minutes of standing around is most likely to happen. Ask your building the question once, and then it never costs you again.