Originally Posted by
turntheheatdown
I cannot believe that miles from March and April have not posted. While I did not keep the boarding cards I checked that every one had the CX number and MH have confirmed it all in writing but CX won't post. Oneworld? I don't think so........I will now lose over 50,000 miles apparently.
You need to turn down the heat.

It's unfortunate that you no longer have your boarding pass. It's always a good idea to keep them, especially when travelling on partner airlines.
Try calling MPO and explain to them your situation. Sometimes they accept copies of electronic ticket/receipt as proof.