Cannot use my own domain when creating account

When creating a new account there is the choice of using my own domain, it is said it is required to change nameservers to ns1.byet.org until ns5.byet.org before the creation, but the domain manager says the dns should accept querying for the domain in order to be changed, so that is put me in a situation where I am unable to change the nameservers, could you please accept querying my domain for now and letting me changing nameservers after?

Please check the FAQ first next time, I think this article answers your question: https://infinityfree.net/support/unable-to-set-nameservers-dns-query-refused/