At wits end with this company

I have been committed in paying monthly as arranged payments has been put in place, I get threatened every 2 to 3 months to increase and I have done so but I have reached my limit of increases as I earn one income and financially am strained. This is the only company that harasses me even though I pay monthly and have not missed a month. All the other consumers I owe money to thank me for my payments which is a lot less what I pay these attorneys. What am I supposed to do as I see there is a lot of people in the same predicament as me and also posted on Hello Peter. They don't listen to any reasoning at all.