Incorrect billing

I am still waiting for an answer on my original problem for the billing of 26/5/2015.<br> On the 28th of July I got a response with reference no ***<br> See below.<br> I am still waiting and another billing period has passed. I have sent emails on the 23rd of June, 13th of July and the 12th of August. I haven't received any feedback on my emails. <br> <br> This was the response on the 28th of July<br> <br> Thank you for your post<br> <br> Please accept our apologies for any inconvenience caused as result of the breakdown in the service delivery in one of our touch points.<br> <br> Kindly note that a query has been logged with the Billing department and they will investigate the data usage and charges. The reference number is Request ***.<br> <br> Rest assured, it is not our intention to displease you. We look forward to improving on the service delivery to you.<br> <br> Regards<br> Lungi<br> REQ:***<br>