This is not a solution and support can’t do this, that would be a security issue (as a different account probably has those nameservers). What they need to do is purge that domain from the old (Jerry and Lina) account so you can use the new correct nameservers on your account (Daisy and Kanye).
The alternative is option 2 in the tutorial which is to contact your registrar and ask them to forcibly set the nameservers to the ones on your account (Daisy and Kanye). Deprecated - Can't set nameservers - (Inconsistent Set of NS / Nameserver not authoritative).