Product: Checking or savings account

My dispute with PNC Bank details are as follows : I received and alert that i was overdrawn on yesterday ( XX/XX/XXXX ). at about XXXX i get another message saying I have XXXX hr extra time remaining to make my account current. I check the app and it states I have til XX/XX/XXXX at XXXX to make a decision on my account. I make a deposit XXXX for {$960.00} and XXXX for {$220.00}. I received and alert saying my account was positive {$3.00}. Later, I discovered they reversed my mortgage payment. They paid all the other transactions that probably could of been reject, but intentionally reverse my mortgage payment. My account had been in the clear at XXXX. 

I called in to see what happened and I am told that low cash mode doesn't mean that the transaction won't be reversed it means you have more time not to get the overdraft fee. I state in order to NOT receive an overdraft fee, you HAVE to make a deposit. You can not tell a consumer that you have XXXX not to get an overdraft fee, but you don't have XXXX hrs to make a deposit. It's literally hand and hand. The customer rep then tells me even though the account was made current at XXXX it is the discretion of PNC to keep or reject a payment. I stated that also does not make sense. I received not only and email, but texts messages confirming that I had til at least XXXX to bring my account current. ( please see below ). 

How does an financial establishment say we can take your money, but it's up to us what gets paid theres now enough to cover all transactions hours later? How can a consumer complete a transaction by a given time and PNC say we are using our discretion and reversing a transaction on the account and they pick the MORTGAGE account! I don't understand how that is ok!!! Not only was the account brought current which by the allotted time allowed by PNC, but it was reversed hours later because of discretion. The rep can't explain it. I now have a balance of {$2200.00}. My mortgage is {$2200.00}. which would of left me with a balance of {$3.00} stated before. Please see below. PNC has not offered a vaild explanation on why they can take my money and not complete transactions that were fulfiled within their allotted timeframe. 

The transactions go as follows : XXXX - Low Cash Mode is on for your account. Your Available Balance is- {$1100.00} as of XX/XX/XXXX XXXXXXXX XXXX Review options in the PNC Mobile app. 

XXXX - Low Cash Mode is on for account XXXX. You have 1 decisions as of XX/XX/XXXX XXXX XXXX  - Your Available Balance is- {$1100.00}. Review options in the PNC Mobile app. 
On XX/XX/XXXX, a {$2200.00} pre-authorized payment to XXXX XXXX was deducted from your PNC checking account ending in XXXX. 

XXXX - Your Available Balance is- {$1100.00} in your PNC account XXXX on XX/XX/XXXX. This is less than vour threshold of {$150.00}. 

XXXX - Low Cash Mode is on for account XXXX. You are approaching XXXX hours XXXX XXXX remaining. Your Available Balance is- {$1100.00}. Review options in the PNC Mobile app. 

Today ( XX/XX/XXXX ) XXXX - Your Available Balance is- {$1100.00} in your PNC account XXXX as of XXXX XXXX XXXX on XX/XX/XXXX. This is less than your threshold of {$150.00}. 

XXXX - As of XXXX XXXX XXXX on XX/XX/XXXX, your available balance in your PNC checking account was - {$1100.00}. Your ledger balance was - {$930.00}. 

XXXX - Low Cash Mode is on for account XXXX. You have 1 decisions as of XX/XX/XXXX XXXX AM. Your Available Balance is- {$1100.00}. Review options in the PNC Mobile app. 

XXXX - On XX/XX/XXXX, a {$960.00} ATM deposit was credited to your account. These funds may not be immediately available for withdrawal. 

Today ( XX/XX/XXXX ) XXXX - Low Cash Mode is on for account XXXX, and XXXX decisions will expire by XXXX p.m. ET today. Your Available Balance is- {$210.00}. Review options in the PNC Mobile App. 

XXXX am- Low Cash Mode is on for account XXXX. Your Available Balance is {$3.00} as of as of XX/XX/XXXX XXXXXXXX XXXX XXXXXXXX. Review options in the PNC Mobile app. 
XXXX am - On XX/XX/XXXX, a {$220.00} Teller deposit was credited to your account ending in XXXX. These funds may not be immediately available for withdrawal. 

Today XXXX - Your PNC account XXXX is no longer in Low Cash Mode. 
Your Available Balance is {$2200.00} as of XX/XX/XXXX XXXX XXXX  XXXX. Review options in PNC Mobile app. 

please see attached screenshots