I'm using the free teir of zohomail and i'm not sure whats happened but i've lost all my zoho contacts overnight. First noticed they've disappeared on my phone, but after looking at webmail contacts, all my contacts list have disappeared.

MFA is enabled on the account using codes

is there a problem that will be fixed, or some way to get the contacts back? if not then i'll start readding my contacts.

edit: just found/tried contacts >  trash > restore. 10,20 and 30day restores all fail as empty. i added a new contact and synced with phone about 20 days ago so i know 100% it was working correctly then.