WILL I EVER GET MY REFUND

1st July my boyfriend in Vryberg mistakenly swapped his rental money with my Jet monthly bill payment. He paid R6000 into my JET account instead of R500 i contacted EDCON in JOBURG ***) hoping that they could reverse the transaction and refund me the R5500, instead they said it was impossible. i asked them to close the acc and refund me the excess, they asked me to send them my 3months bank statement and a letter requesting closure of my account ,they said the funds will be in my account within 7days. After 8days i did not receive the funds, i called on Thursday they told me to call back the next day. The following week on Tuesday i got a hidden number call and it was from EDCON, a lady told me my funds bounced from the bank and i should give her my banking details again, i did and waited another week. no money in my account. Since then i have been calling/e-mailing with no help.I asked them to contact one of BOTSWANA EDCON to refund me since their banking has issues with recognising my bank account.Legodile Komane sent me an e-mail on the 4th requesting banking details again. was given *** /*** to call but no answers.should i continue sending my bank details?