Payment untraceable

I have been complaining since March till date about the payment i have made and it does not reflect on their side "as they say" but i paid and my electricity was unblocked but to my surprise now my money is untraceable and no one has the answers they keep on taking me from pillar to post or all they say is that "unfortunately we cant see it on our side" so what must i do ?? Because clearly there is something wrong with their system how can i be unblock then all of the sudden the payment does not eeflct , they said i must email proof to creditcontrol department ,i did but no luck no reply no sense of urgency they are not taking their customers serious they dont care , all the peoplw i spoke to over the phone they dont know and they dont even care to follow up i must keep on begging and calling but there is no one who knows their credit control department does not even reply to client , their complaint department closee my case with no feedback ,this is really frustration and it seems like they dont take us serious ,and we are talking about money it cannot just disappear with no trace , somebody must have answers and solution ,if they dont know then who must know??