new seller selling things from home and for my funds to transfer i need a CRN

as you can see from my title im not a business i just sell couple things and i need to cash out my funds i already did my provisional license now i need to apply and make a CRN which i dont have, i dont want to have any government issues and i dont plan to make alot of money what can i do? ive sold on vinted, ebay and depop before the maximum they have asked me is more identity such as a passport???? why is it soo muchhh!!!

what can i do??