CX are actually a lot more lenient than other carriers in reimbursing rimowa. basically

1. Get a letter or official quote from rimowa. the former you get when your case is beyond repair.
2. send it to customercare at crappypacific.com. they will reply with this standard template Thank you for your email regarding the damage to your checked baggage, when you travelled with us in October.

"We regret that we were unable to respond to you sooner. I would like to apologise for the inconvenience caused on this occasion. I understand that your baggage is beyond repair. So, please send us a scanned copy of the original purchase receipt of the bag and/or any electronic statement of the transaction that serves as proof of the purchase of the bag, its price and its date of purchase. If you do not have these documents, please let us know when and where the bag was purchased along with the purchase price.

We hope to hear from you soon. "
you send them the receipt, they pay you via bank transfer.

my non repairable letter stated a similar suitcase was HK10500. cx paid me $5200 for a 5 year old suitcase. they take 10%off for depreciation every year to a cap of 50%. dunno why i got less than 50%, but didnt really care to argue over the price of two cups of coffee.