Entering a mikveh with partial payment

In my area there is a men’s mikveh that is not well maintained, and the owners, because of debts, decided to charge a very high membership fee, higher than any other mikveh I know, even though the water is paid for by the municipality and the property is public land. Is it permissible according to Halacha (avid inish dina lenafshei) to pay only a reasonable amount [the amount paid in any mikveh in the country] by putting the money into the box, and to immerse there without paying the entire exorbitant price they are demanding?

Shalom u’vracha 

It is forbidden. 

The fee is for all the components of what they do for you, such as heating the water, cleaning, and so on. 

They do not owe you anything, so there is no place here for the principle of “avid inish dina lenafshei.” 

Have an additional question on this topic or need clarification? Leave your comment below. (Please note that the comment will not be published but will be sent directly to the answering Rabbi for review and a private response)