First, although you are a part-time worker, you are also an employee, provided that you tell the person who answers the phone. When you apply for a credit card, you may call to say whether someone is working here, and then he will just say "yes". ; Or a company with acquaintances can be flexible.

second, it's easier to prove your work, so you can affix an official seal or financial seal.

if the above two points meet, just do it with confidence!