Irrate customer

I sent R2000 to my sister using senda imal on the 19th of January 2020 at 21h12 the next morning she went to withdraw it and got a slip stating that her pin has expired but it was not yet 48hrs, she retrieved another pin using *120*001# but now the message she got stated that she doesn't have have senda imal to be with drawn, I then call customer care and I was told that I will get back my money in the next 48hrs as it will reflect back to my account, but till today nothing has happened, I then called in again and the lady that I got told me that we need to purchase airtime to my sister's number and try it again but still there's nothing, I am really not happy with the service and I really need my money back recompensated on top coz they have inconvenienced me as we have a ceremony that's taking place on Sat and we now stick because of them...