Very unprofessional and ******* practice

On Monday morning, I logged in to Sterkinekor website to book 5 tickets for my family (Minions Movie). Once I've completed all VISA card payment details and click ok, a message appear saying that the payment is not completed due to an 'error' in the online services and the amount will be refunded immediately. In the same time an sms from my bank had confirmed the dedication of the 5 tickets fee? I had to call the company and after long hold a call centre worker had responded and after providing her with my card number she said the error was from the company due to online booking overload but I will only get my money back after 72 hours? And if nothing happened I should give her a call so she can tag my call to the finance and IT department ? Asking her why she can't do the call now she said its the company policy to wait for 72 hours? THIS IS ******* PEOPLE !! If your online services are down then how in earth you keep people's money and refund them after 3 days ? I didn't had my item and it wasn't a case of returning tickets or something. I had to fly to Cavendish cinema to purchase the tickets from their since I promise my kids to watch that movie that day. Last time ever !