Here's one. I had originally booked QF11 in Economy / S class through work with a connecting flight on AS up to SFO from LAX. At this point I would have expected to earn 60 + 10 = 70 SCs. Note that this booking was originally made during the recent DSC promotion. Prior to the departure date, I purchased an upgrade from Economy to Premium Economy - note that this was not a bid upgrade, it was a full exchange of the ticket and my new invoice showed T class (i.e. discount Premium Economy). At this point I would have expected to earn 90 + 10 = 100 SCs. While largely irrelevant (I believe), I subsequently had a Classic Rewards points upgrade come through from T to J.
QF11 ended up getting delayed for 29 hours last Monday, and was ultimately cancelled. Prior to cancellation, I was re-routed onto the direct QF73. I was re-accommodated in J. A few days later, I had a regular 90 SCs post (unclear whether this was for QF73 in T or QF11 in T). The correct DSC's of 90 posted a few days later.
Here's where it get's hairy. I put in an ORC as I needed the 10 SC's for the LAX-SFO leg on AS, as this is the difference between making Platinum from my return trip to SYD, and waiting for my subsequent departure back to LAX in a few months time. The ORC for 10 SCs was provided, but they have downgraded the original 90 SCs (but not the DSCs) to 60 SCs. They are insisting I was originally booked in Y for QF11. Surely the paid exchange/upgrade to T trumps this???
Multiple emails and pleas for help on Facebook, but I'm getting nowhere.