Money laundry by a school staff

Money laundry by a school staff
It all started in the year 2019 (2018/2019 session), when I had issues with my school portal, and I was on the verge of making school fee payment and without access to the portal I won't be able to make any payment. I was referred to the ICT centre to tender a complaint for my portal issue to be rectified. Mr Mayowa Sunday, a STAFF of the institution(EKITI STATE UNIVERSITY) who was the portal programmer, rectified the issue, and he called Gabriel Sunkanmi his accomplice, to his office to make the payment, and it was successful because a receipt was issued to me from my portal and it was showing on my dashboard that I paid.
The receipt was taken to the bursar's office to confirm my payment, it was confirmed successful.
During the first semester examination, a clearance card(Exam permit) was given to me to proceed with my examination.
Later on the school portal crashed and this led to the revalidation exercise and this process revealed the receipt issued to me via the school portal was invalid.
We were over 500 affected students unable to sit for some of our exams before we were issued temporary revalidation which led to a great number of us failing our exams or searching for our scripts and still the school authorities are insisting we pay for a crime committed by their own STAFF demanding we repay our tuition fees.
We once arrest the criminals and hand them over to the school security unit and we were told then that they have also hand him over to the DSS(Director of security service Ado ekiti ) for proper investigation.
After about 4 months we were told that someone took their bail.