When we started taking long trips we opened a special checking account and got all our utility bills and the like automatically deducted from that account. For some things such as our satellite TV we have those put on our credit card so they don't have access to our checking account. The credit card, in turn, is deducted from that special checking account. Once in a while we buy something online and can use Paypal where no one has access to either our checking account or our credit card. Personally, I wouldn't feel comfortable with someone else handling all my personal billings and, to be honest, I don't see the need for it. I'm sure they would not be doing it for free, so why would you want to pay for a service that not only can be done automatically but at no extra cost.
Most of us have had paychecks or Social Security checks or whatever put into our checking account automatically. Bill paying is the reverse and nowadays there aren't many places that can't handle it. An alternative that we did before the automatic deductions was to "guesstimate" how much each bill would be for the number of of months we would be gone, write them a check for that amount, and prepay it. That routine was a real hassle and automatic deductions are MUCH easier!
When we're gone a long time we have someone forward our mail about once a month. In that mail we get the paper bills to double-check against our checking account and credit cards. Meanwhile, most of us also check our bank accounts at regular intervals. With the proper security in your laptop and internet it is possible to have secure connections even while traveling. Some of the people on this RV Forum are fulltimers and they're experts on handling these things electronically. They may not have utility bills like those who have stick houses, but they still have to pay vehicle insurance, health insurance, licensing fees, and the like.
ArdraF