Incorrect Billing - Unable to get any response

I activated Vodacom International Calling Plus on my line on 19/09/2014.<br> <br> I was billed according to this service from 19/09/2014 to 31/10/2014.<br> <br> I was then billed incorrectly at normal international rates from 1/11/20104 - 3/12/2014 - without me cancelling the service. This amounted to an account double of what it should have been!<br> <br> I was then again correctly billed from 4/12/2014 to 31/12/2014.<br> <br> I logged a query on this on 1/12/2014 with ***. I escalated this query numerous times (19/12/2014, 06/01/2015, 08/01/2015, 12/01/2015).<br> <br> Today I called again, and was told that the query was closed due to them not being able to pick up any billing mistakes - even though I am sitting with the itimised billing in front of me which clearly shows the mistakes!!!<br> <br> This is totally unacceptable from any Cell Phone Service Provider, and I would highly recommend for all to stay away from them! <br> <br> I will be logging a complaint with the relevant authorities.<br>