Failed To respond

On the 04/06/15 i app**** online for the Huawei P7 LTE Black on the R279pm deal Telkom mobile i then received a confirmation email thereafter. On the 05/06/15 i received a phone call from this number *** call centre at 10:58 to finalize the application but during the call it was ended due to bad signal. I haven't been contacted since by anyone from Telkom explaining to me what is happening after i have sent 2 emails complaining about this exact issue. This is absolutely unacceptable for a company that strives on customer service. I would like to know what is going on.