MONEY NOT YET BEEN PAID TO MY RECIPIENT IN GHANA.

On the 21st of May I send money to Ghana using MTN MO MO as I normally do, but the money is not yet been paid to my recipient in Ghana, I logged the query with MTN MO MO and they requested the proof of payment and the details of my recipient in Ghana and also my details on my Momo App. I did sent them, I was informed that the turnaround time is within 2-5 working days, they gave me the reference number :REQ***. I kept on reminding them to the point where they don't respond to my emails. It has been a month now, the money is not yet been paid to my recipient in Ghana, MTN is a big company but how can they hire people who can't resolve the queries or give positive feedback to the customers if they have some challenges. I want my refund or send the money to my recipient in Ghana please.