Unable to upgrade my account

I have received the following sms:<br> Dear Telkom Mobile (previously known as 8ta) data subscriber, your 10GB Internet 5 Promo is due for renewal. We have an exclusive offer for you, where you will get an additional 10GB of night data free! Send a mail to [Email Removed] with you name and phone number to be contacted or visited you nearest Telkom store.<br> <br> So I have been to the Telkom store in Brooklyn who said I must call the call center. I then send an email to the given email address, but did not receive any reply. I then contacted the call center who said I need to go to a store. I told the call center lady that I have already been to a store and they cannot help me. She then took my number and said she will call me back. I am not surprised that I have not been called back.<br> <br> I would love to take the promotion loyalty upgrade, but I suppose it involves loyalty from both parties.