Bad experience with Telkom, Case number ***7

<p>Hi,</p> <p>I have TelKom LTE devise 24 monts contract, I am not hapy with devise andnetwork. I did send Canceletion form and request to Telkom on 19th December 2016 "Case number ********** 7", but untill now no response from Telkom. I did lot of calls to telkom 081180. Every time they saying, we will escalate to billing team. But no result. </p> <p> </p> <p>Thank you </p>