As a blogger, I've come across a common question amongst iPhone users - Does iMessage work if you didn't pay your phone bill? The answer is quite simple: yes and no. iMessage works on both cellular data and Wi-Fi, so if your phone bill is unpaid and your cellular service is suspended, you can still use iMessage as long as you have Wi-Fi access. However, if you don't have Wi-Fi or your Apple account is suspended due to non-payment, iMessage will not work. Overall, having a stable Wi-Fi connection is your best bet to continue using iMessage even with an unpaid phone bill.