Bharat Petroleum [BPCL] — 10% fuel surcharge levied

I have purchased rs. 102/- petrol from a bpcl petrol pump on 20/01/2019 using my hsbc visa platinum credit card (*1620) but i was charged rs. 113.80/- for that transaction. As far as i know fuel surcharge is levied @1% on credit card transactions which results in rs. 1.02/- as fuel surcharge. If i consider @18% on the surcharge, it should sum up to rs.1.21/-. Please refund the excess amount charged on my card, i. E. (113.80- (102+1.21) =113.80-103.21=10.59) rs. 10.59/-.
Balaji roy (Ph-[protected])