Product: Checking or savings account

Since 2022, when Regions was fined XXXX by your organization, they changed their rules and policies regarding how overdraft fees would be handled. The current policy states that each customer has a grace period to make the account positive by the end of the next business day by XXXX XXXX XXXX XXXX EST. 
On more than one occasion since this policy change due to force. They have charged me fees within the allotted timeframe in their policy. I have been able to get them to reverse most of these fees when they occur as long as I was within the time period. However, lately they have refused to refund the fees. I went negative and would make is positive either the same day or the morning of the next day, which is within frame of their policy. I have done so in each case where they refuse to refund the fees I was charged. 
For example, one such case at the beginning of the day there was a positive balance, by the end of that day and before their cutoff time of XXXX had a positive balance. Then the next day goes back into the negative and same thing within the timeframe the account was put back into the positive. But then a day later I'm charged not one overdraft fee, but multiple fees, totaling {$100.00}. - I have evidence of each claim and occurrence related to these failures in their system. 
They say there is a pending period for money transferred into the account from another account in the same banking institution that is allowing the system to charge me. Yet when I transfer money from one Regions checking account to another the money shows instantly and is available instantly. So why would I be charged a fee? I have several such examples and evidence to show these failures. Like I said, they have corrected most of them, but now are refusing to correct the fees. - I do not understand how they are allowed to get away with this and XXXX over their customers further by not following the policies they put in place from when they were fined from their previous illegal overdraft fee transactions. 
I am seeking your help in making this right for all Regions customers again and myself. If their policy is an extra day by XXXX XXXX XXXX then that is the time I have to put money in to make it positive. This account, by the way, is a shared account between myself and my wife. We use this account to send money to each other or to pay other bills tied to that account. We always keep up with it. We have on some occasions gone in the hole or negative beyond a day and deserved to be charge an overdraft fee. But what I am specifically referring to is outside of that and within the rules they setup to benefit and help their customers. And now screwing us over again. 
I got some $ XXXX back from that lawsuit from 2022 when they were fined XXXX. Because for years they screwed me over, and now they are right back to it, just in a different way. 
I've tried to work with them. I've talked to them. Explained what their own policy states and used that as a way to bargain with them to avoid this route and any type of lawsuit, but they still refused to reverse the fees. I tried everything I possibly could in this case. I went to the branch, talk with them as well. Their system will not allow them to reverse these fees. And if you look over my transaction history you will see I was well within the timeframe. 
Please help.