Hi Katherine! I am not a specialist on the field but from what I understand "apoyo puntual" could be like a job that is carried out at a specific request and at a specific time. It is not a part-time job and it's not a full-time job.
I would say it's not considered as a job at all but as a "help" which I supposed is paid for.
Now, the "gastos de apoyos puntuales" should be all this person has to spend to carry out the previous activity.
If you could post more info, perhaps we can help you more.
