Please clarify what the auditor stated about - "written up for not covering the TS specific requirements in our management review..." Did he clarify that? If not, I would ask him for clarification. That is not a requirement in cl 5.6. - 5.6.3.
Please don't go into this audit without a clear and confident understanding of what you are going to get. Imprecise and, possibly, biased findings like this will become a burden for you later on.

