Originally Posted by
corporate-wage-slave
It's the Mennens Formula again, see the wiki and the linked posts. You initially claim the resultant Avios (and cash) from BA, and then translate that to cash only, using an exchange rate of your choice, when going to MCOL. CEDR can take on a claim in Avios.
Without knowing the specifics, while I think you would have a good case for Mennens, I would be surprised if delay compensation is payable, unless you are able to argue the "all reasonable measures" case.
Thank you - to be clear are you saying I take the actual cash ticket prices and then convert that to avios for the BA claim part and then with MCOL I just use the cash? Sorry if this is clear somewhere, I have only seen illustrations of Mennens in cash, not Avios.