POOR SERVICE

My cellphone was ****** at the end of July 2019 and from then I have been trying to get the retentions department to give me the correct cancellation amount .They have sent me 2 system generated bills showing me the breakdown but when I do the calculations several times over, it does not add up to what they are charging.The first person from that department told me that she can open the document and saw the error but that it is payroll time and I should call back on the 05 September 2019 which I then did and then I chat yesterday to a gentleman,Tuluphelo, who told me that he cant open the document so he wont be able to assist me with my query and only an administrator from another dept can do that and he is sending them an email as we speak but I still have not had any contact in this regard from anyone yet they say that cancellation amount is valid for 7 days only. Ver bad incompetant service and very disappointed with Vodacom after so many years of having paid for 2 contracts with them.