German Language Bug - how to change language?

My game is on german language. The problem is, that the names/descriptions of some things, e.g. in the tech center are buggy. It says "tech_description_1" instead of Wood Tech. I already wrote to support and they told me to change language setting on general thing. Something like
General -> International -> Languages, but I didnt find because its quite difficult to guess the wrong descriptions right^^ and i also didnt find any international button there... can anyone help me to set my game on english language please?

change your phone language to english..

It is the same problem for all others languages than English.

Support told you to turn your entire phone language to english. it mean you have to go to your phone's settings ->general->international->language and then turn to english.
It also mean ALL your apps will be turned to english

there is an other way you can use to change only haypi language but you'll need to jailbreak your device at your own risks.

infos http://haypi.com/forum/viewtopic.php?f=1&t=13592

[support9]

please go to your phone settings-General-International(Language)-change your phone language from Germany to English.
Sorry for the inconvenience and we'll improve in the future.

[support1]

We will figure out how to reslove the issue for players from non English speaking country

We will figure out how to reslove the issue for players from non English speaking country

Thanks for your reply, Tracy.
Do you have any news about the translations we sent to you?