Stop Particular Spam!

We have a contact form with JotForm because it is awesome and we love it! However, one thing we would like to do (if possible) is stop the spam that is coming through the form. I know we could add a CAPTCHA to stop automated submissions, but I'm not sure if what we are getting are automated submissions.

They seem to be human generated, but we get multiples of them every week from different companies. We generally get them from India and China, and they all generally start out similar.

What I tried to do was if anyone entered "India" or "China" in the form, it would remove the submission button, which I assumed should have stopped them from submitting the form. (A sweeping removal, I know))

When I test the form it does work, and removes the submit button -it actually hides the whole form, but we are still getting these emails somehow! Is there something I'm missing, or is there another way to stop these emails? I can't mark them as spam in our inbox or it will affect all the submissions so I'm really at a loss as to how to stop these!

Any help would be greatly appreciated!
-One Frustrated web tech!

 Sample of a Message: 

This is Steve from Design Master India (www.designmasterindia.com). We are a Small Agency and team of qualified designers and developers available for new projects. If you are in search of a website design and development partner or planning to outsource Web design work, we can manage your needs and help you or your company to focus more on marketing and build your business to the next level, providing quality work in less time at attractive prices.
We are a custom Web site design and Web development service company specializing in designing various types of Web sites for small or corporate businesses.
We provide wide range of web service including Small Business Web Site Design, Dynamic Web Programming, Custom Website Development, CMS (Content Management System), and e-Commerce Solutions etc. We provide quality service at a very reasonable, affordable price. The other factor that affects any business is time. We value your time and work hard to meet the deadlines.
You can check our sleek portfolio at www.designmasterindia.com If you are looking for dependable designers and developers with excellent communication skills please do not hesitate to contact me for outsourcing to us. Please email me a description of your project and we can provide the best service for you.
We offer website design services at below low rates:
> 1Homepage + 1Innerpage design in PSD format - $350  (With 2 Home Page Design Option)
> Conversion of 1Homepage + 1Innerpage from PSD to HTML5- $150
> Logo Design - $120
> Creative 5 Page website with contact form and Main Banner Slider - $450
> Creative 5 page website with CMS, Mobile Responsive - $600
Skype: seoaceindia
Looking forward to hearing from you.
Thanks
Steve
Design Master India
steve@designmasterindia.com

I understand your situation and sorry that you have to go through this.

Captcha would be the best method to explore when dealing with spam notifications but like you said, these submissions are being received despite the conditional logic statement you have put it place -so yes these submissions are not spam bots but actual human beings.

What I can suggest in this situation is using our Unique Submission feature.
http://www.jotform.com/help/64-How-to-Set-Unique-Submissions-on-a-Form 

You can limit your form user to a single submission by blocking their access to the form using their IP Address (Strict Check) or checking their browser cookie to see if they previously submitted the form on the PC that is correctly being used (Loose Check). Loose check would fix this issue partially because if the user decides to switch browsers or simply clear their browser cache and cookie they would gain access to the form once more. 

How often do you receive legit submissions from a single user? You should ensure that enabling such a feature would not affect the flow of your business. We will await your response.


Cheers!

Hi Sean. Thank you for your reply. Unfortunately, CAPTCHA may be our only option as that option will not work because (unfortunately) we have clients who use the contact form regularly instead of opening a ticket properly so from what I gather from your answer they would only be able to submit the form once and then they would be blocked?

Let me know if there are any other options, or if I was misunderstanding you. Thank you for your time and response!

Setting up form limits using loose check needs to clear cookies before they submit the form once again using the same browser. If strict check is selected, they'll not be able to submit the form again using the same IP address. But if the cookies are not cleared or using the same IP displays the message that the form is not available (or other message as you set in the form preferences) after submitting the form. If you have regular visitors submitting the form, Captcha may be the best and only option available at the moment to choose to block automated submissions.

Thanks!