Unfair dissatisfied disappointed service to customers

Made a booking which was done a week ago paid full amount got debited in my card then booking gets cancelled based on their own errors and I’m told I only get my payment back after twelve days after fault was on their side totally unfair how will I make another booking in time whilst I was debited by them my own funds then told they’d only release them from 7-12 working days totally dissatisfied.appalling customer service their own fault now this totally unacceptable and unprofessional how do you make another booking whilst your own money will be rembursed at their own time whilst you were but at fault