MANGO AIRLINES WILL DO ANYTHING NOT TO REFUND YOU

I have been trying to submit a refund for a flight that was accidentally double-booked due to an error in the Mango Airlines app. First of all when phoning the refunds number, I was put through to reservations somehow. After several minutes, I was transferred to refunds where a very unhelpful operator told me that there was nothing that she could do for me over the phone (what's the point of a refunds number anyway?) and that I needed to send an email explaining why I needed a refund. She did not provide me with an email address. I went to the website and sent an email to the only email address displayed on the website, [Email Removed] Today, I phoned refunds again and found out that they had no record of my email. Apparently there is a different email address, [Email Removed] for refunds. Nobody had mentioned to me in the 3 phonecalls that this is the address to email and it is nowhere to be found on the website. This has given me the impression that the system is designed in such a way as to make refunds as difficult as possible and has left me, a loyal Mango customer, feeling seriously upset.