Billed but no sim card.

After ordering a data sim card online from Telkom, I was billed but have not received the sim card yet. After visiting a Telkom office, I was told that because it is an online transaction, it must be resolved online by calling 10213. I have been calling for 3 days now, from a land line and a telkom line - without success. This is so frustrating and I am at my wits end.