MTN Momo bad service

On the 3rd April I made a cash out via MTN Momo to Nedbank ,I have never received my voucher number or pin,a week later I log a call with them I get a reference to this day 2nd May 2024 my query ref 00000*****80 has not been resolved and I have not been refunded.I have called and sent emails and I am not getting any assistance. The call centre agent gives me countless promises and lie every time I call,it looks like they don't even understand what they are doing ,I need my R2500