Paying for a product I haven't received

I upgraded my contract on the 14th of November. My new contract also includes the Galaxy watch 5. I was told that there was only one watch in stock but it was reserved for another customer and that they would let me know when they have stock. 2 weeks later, after not hearing anything from Telkom, I went back to the store and was told that there were now 2 watches in stock, but was also reserved for other customers and they would let me know when they have stock. It is now a month a half later and I haven't heard anything from Telkom. Yet I have to pay my contract that includes a watch, but have not received the watch. How long do I still have to wait?