Apollo Pharmacy — I'm complaining about issue I faced with order and it's refund

Worst service. I had ordered 2strips and paid while placing the order. But after placing order, another 2 strips were added and asked me to pay for the others which I didn't add. I tried cancelling but it asked me to reject delivery. Delivery person rejected to cancel it and I had to pay the rest and take the medicine. I contacted Apollo customer care regarding this, mail was sent for refund of the amount I paid while placing order 4 days ago and yet to be credited and not the amount I paid during delivery. I have being contacting them everyday about this and I get the same mail with the half refund everytime I contact them. They rudely hung up on me with standard ' apologize for inconvenience caused' message. Please resolve this ASAP. Order number[protected]. Zonal pharmacy ticket 100446. PFA'ed mail and bill for reference. Hope this issue gets resolved sooner