Billdesk — Amount debited but recharge not successful

I made a dongol recharge of rs. 255 through sbi netbanking. The amount was debited but the recharge was not successful against reference no ig0ahgiri0. Later i made another recharge of same amount which was successful. Now u have processed the earlier transaction also and i got two successful recharges which was not required. Kindly refund me one amount of rs 255 at the earliest.