After some advice as to who this sits with, in terms of investigation right through to a resolution. 

I'll type it out in bullet points so its concise, to the point!

• Two separate units\sleepouts built on the landlords property
• Unit one has a ONT installed
• Unit two has a network wall socket connecting to ONT port2
• Blue patch cable running underneath unit 2 to unit 1
• Quic service livened up port 2 last week
• Router plugged into unit 2 wall socket - no internet connection (PPoE or DHCP)
• Router plugged into ONT port 2 using the network cable provided in the router box - internet worked

The scenario suggests the cable between the two units is damaged. 

• Landlord is stating it's the provider that doesn't support the 'setup' - Quic do. A port 2 activation is one of the options on the signup page
• Landlord has said previous tenants had no issue with Internet.
• Landlord also stating that a ONT wasn't installed in unit 2 because there was anymore available 'fibre connections'
• Landlord has stated that Chrous installed the network cable between the two units and its their responsibility 
• Renters should be contacting the provider, to initiate a fault call with Chorus.

What step do I take next?

Thank you