Most tow owners we talk to have paid for marketing before and got reports instead of calls. So the way we work is built around two things: fix what loses calls first, and show you a number every month that you can check yourself.
We use software to do the repetitive parts: sending review requests after each job, counting calls, pulling the scorecard together, and first drafts of posts and replies. A person checks everything before it goes out, and you approve anything public in your name. Your customers only ever get texts written in your voice and approved by you.
A first term of 3 or 6 months, then month to month with 30 days' notice. Within 10 business days of leaving you get your access back, your data exported and our notes on what we set up, and we delete our copies.