Double booking

On the 5th June 2015 at 23.35 I tried to book a ticket with TravelStartUAE for 3passengers to fly from Manchester to Dubai return from 21st December 2015- 1st Jan 2016. When booking through their website, I received a confirmation of the booking through email, but received a text message saying the payment hadn't gone through. At 23:54,I tried booking the same flight once again, when coming to the security page I was told my booking was successful and again I was sent a booking confirmation. (No money had been taken from my account on either attempt)The following day (still not being debited for any purchase) at 11:30am (a whole 12 hours later after the second booking) I received a phone call and yet another text message saying the booking was unsuccessful (they never referred to which booking) I then went online to re-book the second payment and it went through successfully.The following day (Sunday 7th June) I checked my online credit card statement which showed that both emirates and Travelstart had taken duplicate money from my account. I rang up and reported it straight away.I am still waiting for a FULL refund of the second payment. I have spent nearly 100AED contacting them