Hello, I tried to book a flight for my dad on the *rd of this month. We got an error me...

Hello, I tried to book a flight for my dad on the *rd of this month. We got an error message, so we tried again, and the same thing happened. Finally after a few tries it said the flight was taken. So we kept looking, and found a ticket on Justfly.com and purchased it. Later I got an email from you guys saying you reserved the ticket we had been trying to get. We called your customer service number (which was just a robot so that didnt help, there was no option to speak to a representative) and after giving my dads phone number, they said the reservation for that phone number had issues and my dads card was not charged. Well it was. I have the confirmation number: SJVLVV and the trip number: ***-***-**** And those were sent hours after all the error messages and after we had gotten the flight from another airline. We called the customer service number again and they said once again that we weren't charge. So I would like to get a refund for my dad please.