Support - what am I doing wrong?

Support - what am I doing wrong?

Hi Everyone - I'm a new user and looking particularly for a replacement mail service. I'm just a home user not a professional but I do look after half a dozen domains. Zoho looks lovely and I'd like to switch but just want to get answers to a few 'easy' questions.  My needs are few (at the moment) really - I'd be happy just to get mail working for all my friends and family.

I've tried the ticketing system at:
https://help.zoho.com/portal/en/home
(to be fair I have recieved automated confirmation this way) 

I've tried emailing:
support@eu.zohomail.com

I've even tried
sales@eu.zohocorp.com

It's been a week now and I'm trying each day but still no response.

I wonder if it's because I only have a 'Mail Lite' account at the moment  or am I doing something wrong?

WIthout support I don't think I can take Zoho further which would be a shame because it does seem good.