bad service when requesting a tax certificate

I called the Johannesburg landline number to request my tax certificate for 2008. A lady answered and said I should send my request via email to ********** after I sent the email the was no response to confirm the email was received and I'm still waiting for my certificate. I senthink a second email advising that I'm still awaiting feedback and again no response. So now I can't do my returns because Edcon is not responding on the channel of communication that they wanted me to use.