We received strange submissions in our "incomplete payments" folders. The names, e-mails, and phone numbers are a jumble of letters. What is this?

As I check the Incomplete Payment submissions of your JotForm, it looks like someone has filled this information intentionally. They didn't complete the payment since the submission has incorrect information. We may consider this as an issue if the submission data has some valid information and the payment has failed due to any reason. 

Hope this information helps! Please get back to us if you need any further assistance. We will be happy to help.