Patanjali Ayurved — exchange of medicine

Address:

East Singhbhum, Jharkhand

Sir, i have a problem in exchanging my medicines which i had purchased for my father, a cancer patient. He was undergoing treatment under dr. Manish dhudiya. I used to courier medicines for my father as it was not available near his house. Now the shop in jamshedpur refuses to exchange my medicines as he says he shut down his shop. Please suggest what do i do with the medicines all sealed bottles. How can i complain. Please suggest.