Malaysian Airlines- Changed tickets to open without my consent

Stringy2080

 Malaysian Airlines last month changed the status of my tickets to open which means we can rebook up to June next year.  I hadn't requested any change to my flights which have now been cancelled and as such I should be entiltled to a full refund.  Malaysian Airlines are refusing to acknowledge the error and saying I am not entitled to a refund! What can I do claim on insurance or through Credit Card?

bradders1983

Do you have the original booking proving this? Be a formality if so.

Stringy2080

I have the original booking and emails back to Malaysian Airlines as soon as they changed the tickets to open that I did not request tickets to be amended.