PayUMoney — Need Confirmation from your end about a transaction for further legal action as Your Client IGNOU denied of receiving excess paym

Respected Sir/Madam,
As IGNOU (Indira Gandhi National Open University) use your payment gateway for Online Exam Payment Fees, That's why I am writing this email for further confirmation from your side. Please give your valuable reply after doing investigation & when you are fully confirmed. Your reply may be used as a proof when I will ask for Refund from either your client or my Bank.
28th September 2019 at 01:00 A.M I received a confirmation message from PayU Payments Private Limited that my transition towards Term end examination of June 2019 form fillup payment is successfully completed.
When I tried to pay that amount 450/- inr for the first time... after putting OTP on the payment page it was redirected to a white blank page & a message was poped up - "Session Timeout". Then I tried to execute for the second time & it was successful. My money was deducted for that previous failed transaction too...

PayU ID
Bank Ref NoActionAmount
Requested TimeSuccess TimeBank ARN
[protected]IGAFTGXAO0capture450.00
[protected]:07:[protected]:07:06

PayU IDBank Ref NoActionAmount
Requested TimeSuccess TimeBank ARN
[protected]IGAFTGWTA5capture450.00
[protected]:00:[protected]:00:51
According to your client IGNOU (Indira Gandhi National Open University) initially they confirmed that they received two payments but after that they started telling me, there is no excess payment received...

First they told me that they received payment Four Times which was not anyway true...In next reply They Told me that they received payment Twice - Which was CorrectAfter that till date they denied again & again, That they received any extra Exam Fees

Here are two possibilities, Either IGNOU will refund me the excess amount if it was successfully passed through your payment gateway or PayuMoney will release the failed transaction amount towards my bank.

I am requesting you to communicate with your client IGNOU to know whether they received two payments or not through your gateway or it may be stuck in your system unknowingly. Right now it's not the matter of 430/-inr Amount. I really want to know where it lost in the era of online banking which is almost impossible. If there is a flaw or corruption in the system then it's a matter of concern for me & I am exploring legal action. So to arrange the case first we need confirmation from all sides then I can make a decision on how to deal with it...