Double charged for Edgars flight booking fees

I booked a flight on [URL Removed] and then made payment using my Edgars thank you card and on the 1st attempt of paying the payment didn't go through and I tried again for the second time and then realized I was charged the booking fee twice. I sent two e-mails to mango regarding this and I received no response. On the 7th of April I tried to call the call centre and I was on hold twice for close to minutes and only on the 3rd attempt I went though. I was told that my query will be sent to IT and I never received a response.<br> <br> I called again today (15 April) and I was transferred from one agent to another and eventually ended up holding for over 5 minutes and my issue is still not resolved. Can somebody serious please look into this.