Paynimo / Techprocess Payment Services — money debited from bank but not credited to school.

I made payment for my daughter's school fees on july 31 around 11:45 pm. The moment i completed transaction at my bank and clicked submit, i got message verification pending transaction-technical error. Money got debited from my bank, but didn't get credited to school

School: amity international school, vasundhara, sector 1, ghaziabad, up
Payment amount : rs 28, 327
Payment date : july 31, 2020
Payment time : 11:45 pm
Processing gateway : paynimo
Student name : radhika

Pls explain that why error happened? Settle and close the transaction asap. Either revert money to my account or transfer to the school with confirmation of transaction id.

I have been trying to locate your contact number. On site it is listed as[protected]. However, it is not a valid number

I tried reaching your office number +[protected] for last 3 days. However, security guard says, office is closed. Very disappointing. Dealing in finance, how can you guys afford to so negligent of pain customers face due to your deficiency of services? Will you pay penalty to the school because of delay caused due to your payment gateway's inefficiency? Don't tell me that i might have clicked back button or other reasons. I made a transaction just before this for my other kid and it went fine.in this it failed.