Air Asia — charge o[censored]nwanted baggage

Hi. I booked my parents a ticket each from bangkok to macao and de-selected the baggage options. When i went to pay the browser skipped a page, and refreshed throwing me back to the last page. I did the same again making sure no baggage was selected, entered all details of the card again and clicked purchase. Again the browser skipped but then continued processing something and then ticket was purchased. When i checked the confirmation page only my mother's flight out was without baggage, the other flight back had baggage attached to it and my father's flight had baggage attached to out and in!. That is 3 payments of baggage suddenly appearing out of nowhere for some peculiar reason. We would like a full refund of the baggage costs immediately please, and suggest you check what is going on with this skipping of the website... Not a good look at all. Looks very cheating and dodgy by airasia who are supposed to be a reputable company.