Board Thread:Questions and Answers/@comment-66.87.73.152-20160422004053/@comment-24659969-20160422011504

What tech support? If you mean about the game developer, you can look for it in the store page. Example for English BCEN on Android playstore page

https://play.google.com/store/apps/details?id=jp.co.ponos.battlecatsen&hl=en

Look under "Developer"section and there is the support email address there.

If you mean technical support related to your device / phone, you better contact the shop / regional vendor branch where you bought it from.