Wrong transaction

I make a mistake of sending money to the wrong cellphone number. I call the number the whole day the call it goes to voice mail. I call the Capitec online for assistance they say we go a call the person to speak with him, later they call back telling me that we can't get the person. Capitec suggested that I should open an case against the person who received the money. My question was that what this person doesn't use capitec acc anymore or if the person is already a deceased. They say that they will contact family member of a deceased or check if the person is not using another number. You know what It's a long process. I don't feel safe now at capitec anymore it's not a first time I expirience this situation, last time I decide to let it go. Becouse that person block my number. I think Capitec should think about us as capitec members & being loyal to their clients. Becouse I don't think I can't be angry if somebody send money to my account by mistake and capitec decide to transfer the money back to the sender If they can give me back the money of my debit order why it's hard to reverse the wrong transaction of cellphone number banking? Or transfer money to right cellphone number.