Horrible communication by mango airlines

Horrible communication.. not worth to try them again

I had books a flight tickets for my mom And her friend unfortunately due to illness she is unable to travel luckily we had such information way before 30 days to her travel date

I sent an email to mango airlines which I got a respond after days from Mazuki who mentioned that she will send me vouchers of all payments made

A flight ticket was R568,69 so I paid return ticked for two passengers

She sent me 1 ticket voucher I sent an email which she called back saying her system was down that was from 15th October on 22nd October she sent a second voucher

I since have been sending emails she doesn’t even try to respond to my email which i am questioning why is it taking so long to send me my balance voucher I have not got a respond even today

Their communication sucks and I wish to never use Mango for this reason I can’t be a client and have to beg them to communicate back with me tell me why the remainder of my voucher is taking long why have I not got any correspondence