Why is my form not working on smartphones?

Also the form doesn't appear properly when used from a smartphone.

I have been testing your form and I was able to get it working on my end, the form was successfully sent when I clicked on the submit button: 

Which mobile device are you using on your end?

May we get a screenshot about the issue you are facing? 

If so, please follow this guide in order to upload it: How-to-Post-Screenshots-to-Our-Support-Forum

We will wait for your response.