What rights do tenants have regarding third-party billing services?

Location: Florida

Long story short, there have been many issues at this property.

A major one though, that I have never experienced is that we keep getting threatened with having our power shut off.

My property partnered with Public Grid. We used it to pay, they kept the funds and didn’t pay FPL and thus the threats began. Public Grid admitted fault and handled the matter, but after that we decided to pay FPL directly.

To our surprise the problems continued. Our FPL account keeps having account information changed. So, the bank processes the charges and FPL takes the money, but doesn’t pay our ledger. Thus the threats come. We have had to pay late fees multiple times as they will not waive them due to this and they simply have us correct the personal info, specifically the email that keeps being changed to phone numbers we don’t recognize and then rinse and repeat.

I am fed up. I’m exhausted. Is there ANYTHING we can do???