LAN LANPASS - Oneworld redemption questions

I have a few questions on using LANPASS kms to redeem Oneworld award tickets. I live in Asia so it seems the only way I redeem an award ticket is by calling the customer service.

1. Can I book Economy for outbound and Business for inbound? If it is allowed, how much kms does it cost, "kms for Economy + kms for Business" or "kms for Business*2"?

I know that Open Jaw is allowed. But I wonder if the followings are allowed:
2. PEK-LHR-CDG. One customer service told me this is not allowed, and she said "because the destination of segment 2 must be in the same country of the departure city of segment 1, and the departure city of segment 2 must be in the same country with the destination of segment 1". But I do hope other operators don't think the same way.
3. HKG-PVG and HKG-PEK.

Thanks in advance.

Update:
For question 2, today's agent told me an even stricter answer: double open jaw is not allowed, which means, (assume this flight exists) Manchester-Shanghai is not allowed for inbound.

I really hope the answer for question 3 is yes. :rolleyes:

Well, the answer to number one is: no.

Well, the answer to number one is: no.

Thank you!

Now only question 2 and 3 remain puzzling :confused:

Maybe you should ask in the OW forum, but probably the best thing to do would be to call LAN...although your questions are difficult ones which I am afraid most of their agents may not know much about.