Website embedded form: Language bar is too small on mobile devices

I’ve just realised the problem is only there for the form which we embed in our website, (a simple Weebly site).
Would you suggest any particular embed option (or extra settings) that would help to ensure it’s showing up as expected?

Hello again,

I have embedded the form on my WordPress website. I have checked it both on mobile device and desktop. I couldn't see any issue as you can see the screenshot below:

Could you please give us your Wordpress URL in order to let us investigate the problem further?

Thank you.

Hi Candy,
Thanks for looking into it so soon. It’s a Weebly site though, rather than WordPress, if that makes a difference.
www.uttarakhand-dra.in/survey.html
Thanks,
Michael
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Dear Michael,

Sorry for the misunderstanding. 

First of all, I have checked your website on a mobile device and I couldn't see many issues as the following:

After, I have tested your form by embedding in my own Weebly site and it appeared as the following screenshot below:

I think the difference here is caused by the Weebly theme that you are using. I recommend you try new Weebly mobile responsive themes as you can find them at the following URL: https://www.weebly.com/blog/look-amazing-on-every-device-with-new-responsive-themes 

Please try and let us know if the issue still persists.

Thank you.

Dear Candy,
Apologies for the late response - just wanted to get back to you to thank you for the extra effort to help figure that out. Especially appreciate you loading it into your own Weebly site to check that aspect too. Thanks!
Michael
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...

On behalf of my colleague, Candy, you are most welcome.

Should you have other concerns or need further assistance, please let us know.
Regards.