How do I get them to refund me???

More than 2 weeks ago I reported a R2500 payment in error and asked for it to be refunded. I did this several times, after having been given several different requirements, please see:<br> Task numbers<br> 976944<br> 976948<br> 977959<br> 986579<br> <br> On 21st December I sent all the required documentation as communicated to me:<br> Letter of request from Centre for Dolphin Studies<br> Copy of Director's ID<br> Bank Details<br> <br> However, I have still not received a refund. I know this is over the Xmas season, but it is NOW 9 WORKING DAYS<br> <br> How do I get them to pay up?<br> <br> Centre for Dolphin Studies<br> V G ****croft<br>