Delhi University — refund of fees due to transaction failure during 2017-18 admission

Dear sir,
With due respect, i want to say that currently i am a student of delhi university and during my admission in 2017-18, i had to submit my fees two times due to failure of transaction in first attempt but the respected amount was deducted from my account. I immediately informed about this to the given helpline number at delhi university site at time (8 july, 2017) and they said that your fee would be refunded within a month but still it is not...
Therefore, i humbly request you to look into this matter immediately and give me a positive response.
With regard
Priya
Indraprastha college for women
Delhi university