This Operation has been restricted. [when enabling mailhosting and adding domains]

This Operation has been restricted. [when enabling mailhosting and adding domains]

Dear Sir/Madam,

I am switching from G Suite to ZOHO. However, when I try to enable mailhosting and add my owned domains, I encountered the following error:

This Operation has been restricted. Please contact support-as@zohocorp.com for further details

I would be very grateful if you could kindly assist to grant me the permissions to add my owned domains, so that I can subscribe to ZOHO Business service.

Sincerely.