@benfatto
It is very bad idea to just ignore it.
This is a prepaid service, if you pay you will receive the service, if autopay fails you will be cut off without any warning. You are warned by sms that payment is due (couple of days before)
If payment goes through you will be notified by 'thank you for your payment' sms. But if it didn't there will be nothing as your service will stop. You will have to pay manually and reactivate your service which is not always smooth.
If you have habit of paying all bills, I suggest you add this one to your list, otherwise monitor it on the due day. Most of people have absolutely no issues, we are talking probably 99% (this stats was pulled out of my socks have nothing to base it on but my experience and reading through this community) and most of those who did have issues were due to expiry date or the downgrade glitch (system withdraw enough funds for new lower plan but checks if you have enough for the old plan hence fails) so those that failed out of the blue are less frequent.
But If you give it a search and read through you will notice that they seem to be frustrating and some of them needed moderators to reactivate.
You can always call 611 or login to see your due date if you need to know for some reason, but you don't have to really worry about it unless you blocked 611 as you will receive the remainder
