ABSA doesn't get back to me

Had a ********** transaction paid overseas from my debit card, reported it on the 22nd May 2019, and their mail response promised feedback in 48 biz hours for Falcon ref: ********** . I called again to follow-up and was promised to have feedback on Friday 31st May 2019... but nothing has materialised as yet? I lost over R5000 and would like to know when I can get it back! have spent hours on their lines!