But when was the original booking made? If it was made before the end of September, change fees are waived.
I've never been asked to pay a service fee, even in Y, I think it's a given that if you're calling, you're doing so because you can't do it online. My comments were in relation to the change fee, which going forward, is a thing again. Also the change fee should be 5000 - where did you get 7700 from?