My mother wants to come on holiday with us next year. Adding an extra room onto our holiday accommodation pushes the cost up by £150 as it moves the price band up a tier, which we can't afford to pay. This is our first family holiday in years as we have not been able to afford it, we will also have to take 2 cars as with my dm coming we can't all fit in one which increases our fuel costs (7 hour drive). Aibu to ask her to pay the difference in our costs? My sisters are horrified that we have asked her for money and apparently she is 'funding our holiday' 