Not that I don't believe you, but my dealings with HK Express in getting refunds have been positive. On Jan 23rd this year when Tokyo had the thickest snowstorm in years, I slept on the floor in Narita airport with millions of other people, no hotels available in the area, and I ended up with a refund that was greater than the total return cost of the trip. So they paid me for a return trip to Tokyo and I even got a free sleeping bag to boot (trying to look on the bright side )
In June this year, again HK Express in Japan, my flight was delayed for around 24 hours. They gave my whole family of 4 a free night at the Tokyo Disneyland hotel (Hilton Tokyo Bay) with a buffet breakfast thrown in. The only thing is that Disneyland is quite far from the airport and they didn't pay the taxi, they told me to keep train receipts and claim them back later. So when I got back to HK I emailed them all the receipts and they refunded to my credit card. I think this was the best flight delay I've ever had in my life.