No Service from RCS despite numerous Calls/Emails

I have been trying to get my details changed with RCS. <br> <br> They set up my account with the residential suburb's spelling that is incorrect. <br> I have not changed addressed, but rather just the spelling which they set up incorrectly. <br> <br> After numerous attempts to call them, and literally always waiting for more than 15mins before being assisted, I finally got through to a consultant last Sunday. <br> <br> I confirmed with him that the spelling needs to be changed - he confirmed that the error has been changed, and sent me new statements, which still reflected the incorrect spelling. <br> <br> I've tried calling them again, emailed, used the useless online interface... nothing