Originally Posted by
peasant
Most jurisdictions say that records be kept for seven years - I think HK follows this rule as well. So you can't expect CX either to (1) have kept the original letter and (2) kept a record that the upgrade/ favour/ whatever wasn't used anytime 1997-2009 or so.
But basically, yeah, this is OD being OD.
CX did in fact have the letter that Mrs Chung also produced. it's only the favour that they dont know if the Chungs had redeemed. So at the value of things, they havent redeemed it.