VERY ANGRY AND DISSAPOINTED

l made a cash payment of R1000 by error and paid R672.81 then a debit order of R672.81 went off, l only took a loan on R500 and l realized later that l paid an amount of R1000 to Wonga Blake Collections l don't have an unpaid loan and l have been sending an email getting a response that my query is resolved with an update of l don't have any unpaid loans, of which l know , l have always paid them on time l am asking for my R1672.81 refund l overpaid and l know they also don't close my loan on my credit report on time l still have loans l [paid which appear not updated, l am so disappointed this is unacceptable.