Order reminder e-mail customers receives after dumping items in cart

[thursdaysrecords]

Is anyone else getting compalints from customers showing having an item in there cart where they have deleted the items and then receive an email reminder daily about the items. I have changed the notification to 2 hours and cleared the cache and they still get e-mails. I have one where they have entered their information but did not register an account and they get e-mails. I can't seem to clear it. I have contacted support and they say they can't duplicate what is happening. Any suggestions?