Contact customer service. You can contact customer service for a refund if you want to return something you bought in Yamei, Hengyang. Refund refers to the refund of prepaid money or overcharged money. Hengyang is a prefecture-level city and sub-central city under the jurisdiction of Hunan Province, which is located in the south of China and the south-central part of Hunan Province. It is an important member of the urban agglomeration in the middle reaches of the Yangtze River and the political, economic, military and cultural center of southern Hunan.