Yes I did, they ignored me. You put me in contact with someone and it was ok, we communicated and I did all the tests that I was asked to do regarding the ipv6 problem, they ignored the pppoe issue. I couldn't give them the wan side packet capture because I don't have the necessary equipment to do it. They admitted that there was no RA from the dir 868L, visible in the LAN side packet capture; they asked for LAN capture from a router that doesn't have this issue and I gave one to them.
In my opinion the wan side is not that relevant, because the router gets ipv6, it just not capable to pass it on to the lan devices. It's native ipv6, not tunnel or something unusual. All other routers I tested don't have this issue so the problem is obviously with the 868L. This is my second 868L, and i tested another one in a store, all have the same behaviour.
D'link Romania gave me a firmware that was patched for the pppoe issue, 1.05 beta, but that fix was not included in the next fw realeases.