Unprofessional Takealot service - damaged my watch sensor and delayed until the warranty expired

I purchased a watch from Takealot and after a few months of using it the sensor in the watch fell off. I logged a call with Takealot since the watch was still under warranty. At the time that Takealot fetched my watch it was still under warranty. However Takealot delayed for a few months before responding that my watch was out of warranty and that could not assist. This is ********* behaviour since at the time of logging the fault my watch was under warranty and should be treated as such. I informed Takealot that the delays from them caused this situation and they needed to rectify it but their service agents were so *********** and refused to take responsibility for their mistake. They returned my watch and then collected my watch again stating that they would follow up. Even though they had the watch with them they scheduled the watch to be collected from me 3 times even though I did not have the watch. There was much back and forth communication between Takealot and myself. Each time I received the same generic answer “I will follow up with our Marketplace team regarding your return. Once I receive any feedback from them, I will revert back to you.” – but no progress was made. I eventually requested that Takealot return my watch, which they did BUT the sensor from the watch was missing. I am now trying to get the sensor returned but Takealot is refusing to admit that they lost it. Furthermore I am left with having to pay for repairs of the watch even though I followed the correct process and returned the watch while it was still under warranty. I have asked to speak to a supervisor many times but I have received no response. This behaviour is unprofessional and ********* and it seems like Takealot does not understand the meaning of CUSTOMER SERVICE. I am very disappointed in the manner that Takealot has handled this issue and I want my money back for my watch that they damaged.