I suggest you do some surveillance
I also had the same issue, complain about the floor above me.
then the floor above me, said they did everything possible to stop the sounds.
after they moved out, I thought there was peace.
Then the sound came back, furniture screeching, loud stompings.
I took the staircase, went up 2 floors above me, no sound
3 floors above me, no sound
4 floors, - turns out to be this idiot who was doing all that noise at 4 am.
I complained again n again.
Finally the sound stopped.

Make sure you are complaining the right person, because sound can travel several floors.

I am surprised the two floors above you didn't complain about the noise?

Google ceiling thumper for a laugh.

Great minds think alike.  Here's mine. As a last resort have to fight fire with fire.

nobody live above me.

I need this!
You use this to hit the ceiling? I’ve resorted to hitting the ceiling with my mop when I hear them stomping. Stubborn brats and idiotic parents. 
Amazing how shitty the soundproofing is in our condos that you can hear noises a few floors above you. For me, the culprits are definitely my next door and upstairs neighbors.

don't be surprise that you can hear your downstair neighbor slam the door too.

last time I stayed in my uncle condo, he offered me for free to stay, as no one was staying there at that time.

Damn, I suffered days n days of sleepless night. There was a mad neighbor upstairs jogging and stomping on the floor from 1 am to 4 am.

Nowadays condos got intercom, can call the guard to sound that person.

Oh, thanks... hmmmm but somehow I don't think this solution would work. Sound also travels from ceiling to walls. Have you tried this before?

Conductor of Impact Noise
While many people choose concrete as their designated building material based on its hardness and durability, it’s this very quality that prevents concrete from improving acoustical performance.
If you have a concrete floor, you may notice that every step produces an audible sound. Impact noises are a byproduct of concrete’s rigidity, which transforms movement into an audible experience. While undesirable, these noisy manifestations can be eliminated with a few soundproofing measures.

Wow, your neighbor sounded crazy! Who even works out at that time unless they worked the night shift.

How do you handle stubborn neighbors though? Slamming the door is okay since it’s once in awhile but the stomping noises is just annoying and sounds like hammering. Been calling the guards to sound them and even went up there myself, when it got so bad.

Maybe I’ll need to file another complaint with MO or go up there with one of the JMB members.

Wow, your neighbor sounded crazy! Who even works out at that time unless they worked the night shift.

How do you handle stubborn neighbors though? Slamming the door is okay since it’s once in awhile but the stomping noises is just annoying and sounds like hammering. Been calling the guards to sound them and even went up there myself, when it got so bad.

Maybe I’ll need to file another complaint with MO or go up there with one of the JMB members.