I was supposed to move apartment in October last year and started a 2 year internet contract at that time. However there was many problems and delays with the move and only now have I been told I will never be able to move in as the apartment is not habitable.

I now live in a WG which already has internet so I can't transfer the contract here. When I raised the cost of cancelling this contract with the landlord they said that when there's a failed move like this you cancel a contract early for free. Is this true? I didn't see any option for it on the customer portal.