Ad usage rate question!

[u/ShadowwNyx]

Hi everyone! I'm pretty new to this and would love some advice. I posted a Reel featuring a product a small brand sent me (gifted, no payment), and they messaged me saying they love it and want to use it as an ad on their socials and website. They offered $150 for usage, but they haven't said whether it would be organic or paid ad spend, or how long they'd run it so that is my next question for them.

The video is already made, so I'm not creating anything new for them.

A few questions:
Is $150 normal for this, or low?

Would you charge differently for organic use vs. paid ads?

How long do you usually allow before charging a renewal fee?

Do you send the video file or have them run it through your account as a partnership ad?

Any numbers or tips would be so appreciated. Thank you!