Btw, slow shipping could happen anywhere not just China. Last time Bought something from a power seller in U.K, it costed me twice the shipping cost, 2.5 months wait and 30+ emails. Lately paid for some cable from a cable seller in U.S ebay, who has 6000+ positive feebacks, whereas it still took 3 weeks to arrive. For not bringing any nagative impact on them I prefer keep silent when got the items from them without quality issues.
It's pointless to keep talking to you if the seller doesn't want to sent you the item, be patient, it happens in ebay at times.