file taxes for CPT internship paid via Zelle (No 1099/W-2)

Hi,

I’m an international student. I recently completed an internship using my CPT, but my employer paid me via Zelle (transferring money from his personal account to mine) without providing any formal income documents.

I’ve consulted several tax services, and they mentioned I was treated as an independent contractor. Does anyone know how I should file this income? I will use Sprintax for my filing.