Business ProfileforInland Power and Light Company

When I first purchased my home and called Inland Power to set up utilities, I opted for autopay and "go paperless" as they recommend. After MONTHS I find out that they had been charging me my neighbors bills as well. The solution when I called was: ask my neighbor to reimburse?? The gal on the phone said "the properties were tricky." How do you make that mistake? For MONTHS now, Inland has been "returning" my payment to the bank. I call my bank, they say no issues. ALL of my other bills come directly out with zero issues ever. I called a few months ago after getting a letter threatening to shut off my utilities and a $20 late charge. They guy on the phone said that it was a Inland Power problem and promptly took off the $20 and resolved the issue. Today I received another of the same letter, months later. After being told it was resolved. I call and the gal tells me "she has no clue what is happening." ? She tells me I can set up autopay again. I tell her my info is the exact same so why would I do that? She says "she has no idea." I ask what I need to do to stop this from happening and why was it a *them* issue then and now a *me* issue? She says "she has no idea." She mentions someone from Inland may be typing in my info wrong. Why am I paying a "late fee" for one of your employees typing in my information wrong? The letter they sent me 11/21 has been ****** out and handwritten in saying I don't have an account with them, then promptly has my typed and correct account number listed. When I pay online as prompted since autopay isn't working, I get "confirmation" so how would I know its "not working?" Her final solution she said would be sending in money each month since the system isn't working right. The solution is inconveniencing your patrons because YOUR company admits to system flaws? I need a resolution as to how I can ensure my bill is paid and why I have paid late $20 charges for employee error.