Paynimo / Techprocess Payment Services — non reverse the amount for a failed transaction

Dear sir/madam
Greetings!
A transaction having transaction i'd tech proce/[protected]/[protected] of rs. 809.44 has become failed on 5th june 2020 while i was filling a cucet university entrance form and making payment through pnb net banking. Then i have transacted again for same amount with transaction i'd tech proce/[protected]/[protected]. Which was successful. But there is no reverse any amount for failed transaction so far.
My registered mobile number is [protected].
In this regard, i have booked two complaints for reversing the amount of failed transaction. Both complaints no are a[protected] on dated[protected] & a[protected] on dated[protected].
Hence it is hereby requested please resolve this issue and reverse the amount of rs 809.44 on earliest.