Been overcharged for Ring protect for the last couple of years

I just got a notification that my “Ring Protect” subscription for 3 cameras at my home would be renewing at $119 in January. We actually have 5 ring cameras at the same location but only 3 are subscribed. I was very surprised that Ring Protect for all cameras at a single location is actually only $100 per year and I could have been paying less for all 5 cameras! This seems very dishonest on the part of Ring to not have notified me or even automatically corrected my account to the lower rate. I’ve essentially been over paying for 2+ years. Can anything be done to credit me back for the overpayments?