Schools avoid easy mode of payment

We don't understand why the well-known schools regularly change how they collect fees. They have no qualms about issuing a new order for fee payment via the demand draft or online system in the current session if they have already accepted a bank cheque for the fee amount last year.

How nice it would have been if the schools had focused on offering better education in the classroom. By bringing change into the fee payment mode, the schools only tease the parents.

What would happen if the accepted bank cheque method were not followed? The acceptance of fees by bank cheque and demand draft is identical. Only after paying a certain amount as commission do the parents obtain a demand draft from the bank. 

They feel it is not good for this system that only increases the straight financial burden on the parents' pockets. The fee is never low to bear such an additional burden before the easily available cheque system.

However, even though the more convenient method continues to be used, the schools annoy the parents needlessly. If the straightforward payment was still in place, why had the school implemented this unacceptable system for many? 

Why is a Demand Draft taken up as a superior method of payment? Furthermore, it is not required that each guardian use the online payment method exclusively. Why does the cheque system not apply once again?