Bad customer service

I ordered the SIM card from telkom on July 19, the SIM card was delivered on the 23th. Ever since the SIM card was delivered it has not been working. I’ve been calling telkom sending them emails and I even went to a telkom store no one was able to assist me. All department I tried getting help from are failing me I don’t know why it takes to long to active a SIM card. I’m really disappointed with telkom service. And even the helpline number on their website doesn’t even go through I don’t know how I’m supposed to get assistance.