Thanks for pointing out the other threads. I had noticed the List of Partners one but it does not address what I was asking -

a) Why the mileage is missing when it should simply have been transferred from a legacy MP account which it was pointed at to an existing CO account with which the MP account had already been linked.

b) Why there is a very obvious gap (February) in the historic statements on offer to view.

c) Why in the statements that are available all the credit card mileage which had been shown even back in 2011 is now missing.

Of course I asked UA by email some time ago about this, but like everyone else have not been afforded the courtesy of a reply.

I also see from another posting today that all MP/OP history has been now taken down from the site.