Deaceased

My father was been ******ed on the 11/7/2015. I phone Vodacom on the 16/7/2015 to report it and stop the account. I sent them 13 e mail with the documents they needed.(they sent me e mails back. Thanks for the e mail we will contact you in 5 day) And phoned them about 20 times. Now we still received final demands. And today they told me that the account was only updated the 28/12/2015. Now we must go to any Vodashop with all the documents again. Then the vodacom branch will sent the documents to the claim department.Please can you assist us in this matter. Because it is really upseting us now.