false advertising

hi, I took out a contract in Jan 2018. a huawei mate 10 pro, with free gifts(a Bluetooth speaker + huawei watch 2), but it seems like the free gifts were not really free, as it looks like I am paying for stuff they said were free. how can the price go from R 699/ R 705 to R 349 in such a short space. I feel like I've been ******. and paying for stuff i don't need. please assist in this regard as this does not seem fair at all, if the price was less R 50 or R 100 that would be understandable. Telkom has been good to me but i feel i have been taken for a ride. and it would be sad to part ways because of such.