Mango Airline BAD SERVICE

I'm very dissapointed with the Service Mango has provided me, I have been a faithful customer, but my recent experience was rather frustrating and stressful and hurtful too. I booked a flight online and paid via Standard Masterpass and the money went off my account immediately but however I did not get the confirmation of booking like I usually do via email and I phoned the Customer care immediately as this was strange as the money went off my account, I spoke to one the agents and she advised that the Booking was successful she even sent me a confirmation via email, to my surprise when I got to the Airport on the 31 May 2018 I was advised that my flight cancelled due to non payment and when I showed the Guest services consultant an sms confirmation and my bank statement she said that the money must have reversed within 7 days after the 16 May 2018, but on my statement it does not show any money that was reversed it shows the money that went off, Mango Airline has inconvenienced me and I had to re-book with FlySAfair and I paid 1548.00 I want my money that you guys took and the money I used to re-book as you guys have inconvenienced me.