Customer Service Failure Regarding High Yield Checking Interest Payment

One of the requirements to get the High Yield is to have a monthly direct deposit. Since I had just qualified to start receiving my pension a couple years ago, I directed it to go to Dade Fed'd CU.  Everything was fine for about 1 1/2 years.  Since the pension was payable on the 1st, it usually posted between the 1st and 3rd of each month.  But the January 1St check was posted by the CU on Dec 30th and so they did not pay me the high yield for the month of January.  First I called customer service, expecting them to apologize and credit me with the difference since it was not my fault they posted it early. Plus I had been a loyal customer with direct deposit, etc, ect.  No Success.  So I went in to the local branch expecting a manager or supervisor to make the interest adjustment.  The Supervisor said he could not make any adjustment and blamed the situation on the fact that they are closed on New Years day and that it isn't their fault it posted early.   Even after supposedly checking with his manager, he said they couldn't make the adjustment. (Which Really Meant That My Business Wasn't Worth their Time Or $90). So 3 minutes later, they no longer had my business. To add insult to injury, they had the gall to charge me $3 to issue a bank check since I didn't want to carry $25K around in Cash. This was one of several disappointments I had with this institution, all revolving around their lack of customer service skills at all levels at both Miami Dade branches as well as their phone center.   This is the one that cost me money and the one straw that broke the camel's back.