leaving windows insider not working

hi- i have followed all instructions to leave the insider programme that i accidently downloaded and want to revert back to my original windows 11. the option is greyed out and i selected DEV originally and cant change the option? i also clicked on selecting the privacy abd security and selected thge diagnostics option which didnt work either. i went in to selct i no longer want to be on the program and logged and logged in and it said , sorry to see you go which i would think its sorted however it seems i havnt? how can i sort this please