Lost funds

I am very disappointed with this bank. On the 27 September 204 I was at their ATM Engcobo to deposit money in the sum of R45 000 the ATM took R15 400 first, then R10 900 succesful and then R10 300 while busy with R10 300 it went offline showing Out of service screen and I waited and waited money did not come back,I went inside the branch to report and I was told to wait maybe it will reflect and then I went back to deposit the remaining R8 400 and used a different ATM and it was successful then I went home hoping that R10 300 will reflect but it did not. I went back to the branch following day to inform them that the money has not reflected and they said they will log my incident which they did, the incident number is *** I was told I will be contacted with feedback I waited nothing came back and I visited the branch several times and they were saying that there is no feedback I should wait which I did up until yesterday I received an SMS saying that my incident has been decline they did not find any funds on their ATM. This is a daylight ******* I put my money one their ATM and they are saying that there were no funds, how?