Additional information and photos below. I apologise for the poor quality of the photos. I took them clandestinely with my iPhone as the shops did not seem keen on people take photographs.
Additional locations:
1-2F, Golden Bell Plaza, No 98 Middle Huai Road 准海中路98金钟广场1-2楼电话/tel: 6191.3322
B1, Wujiaochang Wanda Plaza, No 77 Songhu Road 淞沪路77号五角场万达广场地下1楼
电话/tel: 6136.2240
1-2F, Baoshan Wanda Plaza, No. 1, Lane 988 Ye’erba Jinian Road 一二八纪念路988弄号宝山万达广场1-2楼
电话/tel: 6071.9969
1F, Jiangqiao Wanda Plaza, Lane 1051 West Jingshajiang Road 金沙江西路1051弄江桥万达广场1楼
电话/tel: 6076.7887
1-2F, Yu Fashion Garden, No. 168 Middle Fangbang Road 方浜中路168号豫城时尚1-2楼
电话/tel: 6136.8126
1-2F, Skymall, No 5001 Dushi Road 鄀市路5001号仲盛世界商城1-2楼
电话/tel: 6167.9566
Product photos:
Please tell me, which of these M&S stores are close to Puding riverside?
Probably Golden Bell Plaza? There are not any in Pudong. Here is the map of locations in Shanghai: http://www.marksandspencer.cn/ms_en/store-locator.html