This sounds like a dog's dinner of a contract and underlines the importance of a clear contract (in its entirety) so that both Parties know what they are signing up to ... in fact one question is : have the Parties actually signed a contract ?
I fear that there are multiple questions in here which, without having the contract documents (what are they ?) and a timeline of when they were issued, work started etc. I cannot answer.
I fear that there are multiple questions in here which, without having the contract documents (what are they ?) and a timeline of when they were issued, work started etc. I cannot answer.