refund

i called capitec bank on Friday 22nd June 2018 which is my bank, requesting them to reverse the amount of r3500 which I paid to standardbank old mutual account by mistake I was supposed to send r350 then I mistakenly sent r3500 but now they giving me hustle and when I call their call centre they not giving me answers I need this money back ref: ********** 9 can someone prioritise this matter as its very urgent, when I called old mutual they will charge me 50% of the money and that's a reap off and my bank is charging r150 . so please capitec staff prioritise my request.