IDP IELTS — Rescheduling Exam payment issue

Hi,
My name is Hemanth Kumar Gujjar and this is my email id : hemanthkumar.[protected]@gmail.com, and my phone number is [protected].

I have to re-schedule my ielts exam, so I had reached to IDP they said I have to make 3500 payment to their icici account and re-schedule, but when I went to bank they said me to deposit the money into cash deposit machine and took the pictures of the screen which clearly shows the credited account name and amount, sent the same to them, but they are torturing me since 3months, sending repeated emails of asking receipt, I didn't get any receipt from that deposit machine, and this is very common now a days..
When I sent the proof of pictures they are not considering it.

Bcoz of this am getting depressed as I am loosing time and they are not helping me anymore..

Please help me, otherwise I had to loose my life also..

Attached the proof with this complaint