In Colombia (where Tvalle is rumored to be based), search the RUES (Registro Único Empresarial) to see if the company is actually incorporated. If they aren't in the government database, they aren't a real business.
Take their profile photos or "model examples" and run them through Google Lens or TinEye. Fake agencies steal photos from Instagram models in Europe. some modeling agency tvalle
Do you have a specific link or Instagram handle for the "Tvalle" you are looking at? If you paste it (or describe the exact username), I can give you a definitive "Real or Scam" verdict. In Colombia (where Tvalle is rumored to be