I’m using iPad, can I give the that serial numer

I m trying to change countries, so I disbanded family sharing wgohich made me feel like shot old yeller, but I also need to redeem a gift card from the new country without evebonntouching the country inpm in, there’s some serious Apple mobster stuff going on here, I also need to get my family sharing bachpk and get myself a new emeil because amazipon and other places locked me out, I may have been hacked

L