Bad service in 1st week customer

So after joining Home Connect on the 1 June my internet is already down on the 5 of June. This after I have sent an email in telling them the Openserve said I should use port 2 on the ONT, but the service was active on port1 on the ONT. Now, none of the services are active on any of the ports on the ONT. Clearly I made a mistake as my emails are getting ignored.