Be ready that in most cases, the domain will not show the new destination immediately when you register a new domain name or change the DNS settings of an existing domain.
Why does it happen? DNS needs to "spread". It means that the new configurations need to be "communicated" to all servers that resolve the domain into the IP number. Everywhere.
The DNS propagation happens at different times in different countries. To check the status of your domain's DNS, you can visit Whatsmydns.net.
Due to the rules of the registrar and information on your dashboard, it could take seconds or hours (usually no more than 24 hours). However, it usually takes only about 10-20 minutes.