There is no cancellation option for the end users after payment is made.
In case of duplicate payment, parent/STUDENT, kindly approach admin OR finance OR accounts department for refund with proof of the transaction reference/ your bank statement.
REFUND WILL BE PROCEssED WITHIN 10-15 WORKING DAYS, respective payment gateway will SEND BACK TO THE ISSUING BANK [USER’S CARD BANKER] IN BATCHES FOR PROCESSING, WHICH SHOULD APPROXIXMATELY TAKE 8-15 WORKING DAYS, DEPENDING ON ISSUING BANKS POLICIES.