Swiggy — not giving full refund

Address:

Patel Nagar, Dehradun, Uttarakhand, 248002

We ordered food at 11:20 pm from urban dhaba via swiggy. But we did not recieved the order till 12 o clock. We tried to contact the delivery boy but his number was out of reach. The no. Is [protected] and his name is vivek. Now when we ask for full refund of rs 137 but they are giving only 68 rs as redund. When we asked them the reason, they justified that they made contavt with us but we did not respond. But we did not recieve any call. Kindly look into thus matter.