On March 31st, between 4:05 and 4:10 PM, I placed three separate market prediction orders. The first order was a buy of 10.9 units, which refunded 5.8 units after the rise. The second order was a buy of 40 units expecting a decline. Later, I saw the decline was going to result in a loss, so I bought an additional 50 units expecting a rise, but the actual position only showed a 5-unit gain. However, my 50 units were deducted. Starting from March 31st, I contacted customer service and on the evening of April 3rd, they successfully credited me with the 5-unit position. After deducting my 50 units, I was left with 45 units that disappeared. Today, on April 5th, customer service kept stalling and couldn't explain where my 45 units went. I want to know, where exactly did my 45 units go?