Delete trading history. Unable to withdraw

Last Friday, March 8, through the official phone number of Pepperstone, 02180241633, I contacted a customer service named Jason, who confirmed my identity information and my deposit time (with recording as proof) and deposit amount on the phone. Because all my transaction records were deleted from the backstage of Pepperstone, I recorded the recording. Jason customer service said to go to the technical department to check, let me wait. On March 15th, I received an email from Jishi that said that my principal was lost on July 15th and July 22nd. The problem is that this is the second day of my deposit, and I am on July 20th, 2020. They are all trading in November 2020, and there are screenshots of my December withdrawal photos. If I don’t mind, why did I send an email to inform me of all losses after I complained? Please Jishi show me the evidence of my loss, such a big platform will also do what these "scam" platforms do! The evidence photos are as follows!