Misleading replacement of broken watch

Good day. I bought a Tempo watch on special from the Vaal mall store in 2013. The watch gave trouble so I sent it fot tepairs in January 2015. Got the watch back in March 2015. Worked fine then started troubling again. Took it in and was told i could take any watch as replacement from the store. At no stage was i told that i would have to pay the difference. The lady who helped me even did a credit note for the new watch so that I didnt have to pay for it.<br> <br> I then see that the balance for the watch is added onto my TFG account. I went back and they said the lady made a mistake and that I misinterpreted them. They assumed I knew i had to pay the difference. How can you assume when i asked time and again and nobody once said i had to pay the difference.<br> <br> So now they want me to return the watch and they will credit the money back into my account.<br> <br> This while thing leaves such a bad taste in my mouth. I have supported TFG for years and after this I dont want to buy anything from them again. I believe i was mislead into believing something and then have to pay for someone else's mistake. Really bad service. Extremely disappointed