Business ProfileforSherburne State Bank

We recently purchased a home and due to our lender's negligence our rate did not get locked in at a proper time. 7/29/2022 our Pre Approval letter was sent to us 8/2/2022 Executed contract of sale was sent to the lender 8/3/2022 Credit was pulled and the process was started.8/23/2022 Lender stated rate not locked yet but now at ****.9/6/2022 Lender emailed me asking to lock in the rate as it is now at 5.85%From this date on I have been trying to get this resolved with Sherburne State Bank. All of our paperwork we signed throughout the approval process had a 5.5% on it and a rate lock was not brought up by *****************************, the lender. ***** emailed me on week before our closing date to ask if I wanted to lock in the rate. When I asked why it was not already locked in she stated we had needed a final loan amount. I thought the interest rate was locked in the day that you applied for your loan and was locked in for 60 days. At no point was the rate lock explained to me that it is different on a VA loan, nor was I asked until 9/6 to lock in my rate. I was confused when she told me our rate was not locked when she sent me the email on 8/23. She finally locked us in at **** on 9/6 but it should have been 5.5. ***** never explained where on the paperwork it stated rate not locked until I asked why it wasn't the 5.5 we signed. When asking her boss for help he never returned my call. I am not a mortgage lender, I feel it is not my responsibility to chase the lender to lock my rate as they are the experts and get paid to know how that works. Due to not knowing mortgages and rate locks my rate is now .25% higher than it should be which results in an additional ****** to my loan. Such a horrible experience. What is the point of having a lender if they are not helping through the process. I shouldn't have to know or do their job. They did nothing to help me with a resolution, even though it cost me money in the end while they still got paid.