What’s the logic behind not stating the compensation? The fundamental reason that people work is to be paid. I expect that a lot of people assume based on the lack of mention alone that the compensation is subpar, without contacting you to confirm whether they’re correct or not. In that sense wages might well be your problem.
Because I don’t know the wage scale at similar businesses and I prefer to let the applicant make a demand, rather than setting the compensation too low and discouraging people from applying to the position. We do state “compensation, with excellent benefits, commensurate with experience.”