Help! I made a bit of a mess with a Bigfoot

[Ben4]

Hello,

I'd be very grateful for any advice please - I'm a novice and wanted to polish out some minor scratches from my wife's car.

I used Uno Protect and a yellow wool pad and when I finished, it looked stunning! but now - a few weeks later - I can see pad marks!!!

Could someone help me understand:

1. What I did wrong
2. How I could have told I was doing it at the time given it looked first-class when I just did it
3. How to avoid doing it again
4. How to get rid of the marks now

THANK YOU VERY MUCH INDEED!