Why has my free account been disabled?

I haven't hit any of the limits. I'm not even close. I think I've had 10 submissions over 2 months.

This is because your account had gone over its form view limit.

For a Free/Starter account, you have a total of 1,000 form-views per month. And as shown in the image above, you already have 1315 form-views.

For more information, I suggest you check this guide: Form-View-Limits: What-is-it-all-about?

You may also want to check this article from our blog: Announcing-Pricing-Modification-Form-View-Limits