Lost purchases after updating.

I had bought all of the Mash-up Packs , but today after updating Minecraft PE to 1.1.1 , I found out sadly that I had lost 3 purchases: Chinese Mythology , Greek Myth , and Fall-out Mash-up Pack . I mean I was requested to re-buy them ! I'm a Chinese, and from what I knew , many of our Chinese players had lost their purchases already , too . Would you please fix the bug ? Thanks very much!