why did Vinted ban me for fraudulent activity??

this happened 2 months ago and i genuinely thought i couldn’t appeal (because it wasn’t in the email that i was sent LOL) it was only until i logged back into Vinted again, was when i saw I was banned for fraudulent activity???

I’ve appealed it now, but idk what part of my account screams fraud……I was selling my old clothes?? I’m a 17 year old idek how to commit fraud

Has this happened to anyone else? Has their perm banned been reversed?