Hi guys

Wondering if anyone can Comment on the legality / or whether QR is allowed under IATA rules to start charging a service fee HKD80 for each change of the flight dates on my ticket bought last year (Dec16) that is still valid - without informing me they changed policy in May 17 - and certainly not the rules when I bought the ticket from QR.

They are also messing me around with as they are unable to offer the last leg of DOH-DXB and after a month have offered me an eight hour journey via Kuwait.
They previously told me they would take care of me and would allow me to terminate the journey with a reasonable flight anywhere from DOH and then changed the policy again without telling me.

Whilst they are messing me about the availability of D class seats on the flights I need are diminishing and I might not even get to use the last 4 coupons.

Any thoughts about how to tackle QR?

Thanks in advance!