Hello Süleyman,
I regret that you have faced difficulties while trying to customize the plugin to match your desire.
I have checked your request and found out that you wanted to modify the form style on mobile devices. The request appeared to be a matter of custom changes, which is not included in our basic support. However we may review it as a custom order, so feel free to describe your customization request as detailed as it is possible, so we assist you with it further.
Let me know if there were other questions/issues that were not addressed, so we could help you to rectify them.
Regards,
Andre