National Institute Of Open Schooling — poor servers compelled payment twice

Address:

Kolkata, West Bengal, 700065

Sir/ madam,
This is with reference to my previous complaint with the same subject dated 1st oct, 2017. I have made payment twice for myself only (Bhawana pradhan sarkar) for admission to dled course under nios on 1st of dec due to poor servers. Citrus pay has responded to it and confirmed receipt of payment twice with a message saying "your transaction id's ctx[protected] and ctx[protected] processed on[protected] for rs. 4553.10 each are successful transaction."
And asked me to reach the merchant site/mail ([protected]@nios.ac.in, [protected]@nios.ac.in) with the following details-
1. Application of student/ learner (Signed by the candidate)
2. Scanned copy of nios web page mention reference number or roll number
3. Copy of bank/card statement
Since then i have been trying to reach these two mail ids alongwith the following mails - [protected]@nios.ac.in, [protected]@nios.ac.in, but no one has responded till date. Forget about the refund. Its just a small amount of rs. 4553.10/- for nios but a big amount for me. Why is that no one is replying from nios? Citrus pay has solved it by saying talk with the merchant and thats it. No one is bothered to refund or even reply even after repeated mails sent to them. Since 16th oct i have sent 5 mails to them but to no avail. Are they so busy?? When will i get my refund? For all the details i mean my mails, forwarded mails, other bank details plz let me know how to reach you. Plz help!!