Internet Mango Reservation

Made reservation and payment via the internet and made SID payment which reflected on my account. After numerous calls I was advised that no payment was received and my flight canceled. Refunds to be made only in 14 days after receipt of a bank statement with a copy of my ID. No possibility of using the funds ALREADY IN THEIR ACCOUNTS TO MAKE A DIFFERENT BOOKING! Need to be in KZN by Thursday. Absolute atrocious service!