Voda******* are trying to ***** from me again!

I recently upgraded my contract and the agent who did the upgrade assured me that I would receive the new handset with a sim card as the sim card I am currently using is too big to fit in the new device. On the 11th December 2017, I received the handset, but no sim card. I immediately phoned Vodacom's customer care department, the customer care agent then transferred me to the after sales department, the after sales department then transferred me to the upgrades department who left me on hold for about an hour. On the 12th December 2017, I tried to contact Vodacom again with the exact same results, only this time I was told that I have to buy a sim card and pay for a sim swop. I want this issue resolved now Vodacom, this ridiculous service needs to be addressed immediately!