I just wanted to let you know how badly this is going currently. After I wrote that reminders were not sending, Quickbooks is now sending heaps of unexpected reminders to my customers. It's borderline offensive. I wouldn't want to get sent 3 emails in a row reminding me to pay. That is what my customers are getting and I've had to personally apologize twice. 

We pay a lot for this software each month. It should function properly.