Many bus stations of Shanghai has buses to Changzhou, such as the one in Hutai Road, South Bus Staion and Shanghai Long-distance Bus station and etc. I do not find where is the hotel you mentioned, are you clear about the hotel name in Pingyin? Well, you can also take bullet train from Shanghai Railway Station to Changzhou, it can arrive the city in 1 hour 10 minutes. Then change to Bus 47 which will take you to Xuejia Town, Changzhou.