Promised vouchers withheld by Mango Airlines

I have been attempting to request Mango Airline vouchers for my flights that were cancelled via call centre due to travel restriction protocol for COVID-19. The original request was made 17 March. It is now over 2. 5 months later, and I have made multiple email requests, and I have received 2 automated emails following up on this request but with no vouchers being issued (the Mango website first stated it would be issued within 7 days when my initial request was emailed, and now its says 30 days). It has been well over the turn around time now. I have had 3 colleagues who have app**** for these vouchers AFTER my repetitive attempts to be reimbursed, and they have all received their vouchers. This is totally unacceptable.

As per your website: "Mango is in the process of issuing vouchers and aims to finalise this within the next 48 hours for all Guests who have bookings with Mango Airlines up to and including 31 May 2020. Please be on the lookout for this communication in your email. Should you not receive your voucher by Tuesday 28 April 2020 please send us your written feedback via the following email address, ***.