couldn't register domain name, stuck.

couldn't register domain name, stuck.

I was a bit ahead of myself and signed up for zoho mail before actually confirming I will be able to register the domain name.
In the end I couldn't get it and now I'm stuck with the prompt to get it verified when infact I haven't got access to it.
I have another domain available and would like to use it instead but need to sort out that first one first.
Admins please help!