Second Attempt to Block Fradulent Attempts on our Account

Good Afternoon JotForm,

We are continuing to receive multiple fraudulent attempts using numerous individual credit card donations of $5.00 everyday.  Per your previous instructions, we  followed your instructions. (Unfortunately, we cannot block someone from accessing your form.  However, you can add in unique submissions in order to limit their ability to submit the form: http://www.jotform.com/help/64-How-to-Set-Unique-Submissions-on-a-Form      This would, however, limit other users to a single submission as well.Instructions from Jotform)

Last Thursday, March 3, our tech support followed these instructions and sent us the following message:

I did this for our form, it means that only one donation can come from one person from one cookie on their computer. I will test it from home. I think this might cause a problem for JGT and even Poinsettia sale (though it is through a different form so now I don't think so.)  I am hoping this will discourage who ever is trying to run cc on our site. 

I have attached a document with the authorize.net report for March 6th and 3 email messages from them that they had suspended our ability to receive legitimate donations over the weekend.  This indicates that the action taken by our tech support did not have any effect on the fraudulent attempts of Mr Jose Silva.  I was unable to attach a pdf with all the listed documents, so only the Report for 3.6.16 is attached.  

What other options are open to us to inhibit Jose Silva from further activity on our account?  His actions are creating extra work for authorize.net, for our office, and for you.  Additionally they are limiting our smooth functioning of receiving on-line donations.

Thanking you in advance for your continued support to resolve this issue

Please try activating this limit to your form: https://www.jotform.com/help/223-How-to-set-Form-Limits-Based-on-a-Unique-Question. You cannot select the full name field so I would suggest doing it this way:

Add a textbox in your form

Configure a condition to copy the full name field to this textbox field

Set the textbox as the Unique Question

I did this for your form. I hope this will help.