Change NS records of existing domain in infinity

Hosting Support
1

Hello,
How can i change the NS records of the existing domain in infinityfree account, i have upgraded to premiuim account in ifastnet, i am unable to get the option to change the NS records in infinityfree account, can anyone help me in this?

2

You can ask iFastNet to migrate your domain from InfinityFree to them.
Also, Nameservers should be changed on your domain registrar, not on hosting.