NO FEEDBACK / PASSING ON THE BLAME / NO ONE DOING THEIR JOBS

I made an EFT payment to Telkom for my contract phone in the amount of R 330.00 in August 2017. The payment went through on my side when i paid it via online banking, it reflects on my payment history but does not reflect on my offical statement and the money is out of my account, have been to FNB numerous times to have this resolved and they haven't even started with the investigation, it has been 3 weeks and no one can give me an answer. They just keep telling my that they will investigate but as far as they can see it has been paid over to Telkom and then Telkom denies that the money has gone into their account. NO ONE IS GETTING BACK TO ME WHEN MY PROBLEM WILL BE RESOLVED AND NO ONE KNOWS EXACTLY HOW TO DO THEIR JOBS AS ONE STATES IT TAKES 24 HOURS THE OTHER STATES IT TAKES 48 HOURS AND THE OTHER PERSON SAID IT TAKES UP TO 21 DAYS....SO WHO DO I BELIEVE ..................................................................