please assist.

my name is Mantletse Makgothi, i bought a Tempo Watch on the 8 April 2019 and 3 weeks later an index fell out inside the watch. on the 6 May 2019 i took it in for repairs at the branch in Easgate Mall, as it is still under warranty. i was then informed that it takes about 4-6 Weeks for repairs. i am very much dissapointed in their service as the Manager is clueless, doesnt make an effort to make a follow up and only when i am there she will ask diffrent staff members for feedback , i have to be the one to be always calling the store and get no answer and having to go to the store almost everyday. As per their records , i was supposed to go collect my watch on the 29 June 2019, till today no one knows where my watch is and always told it is dispatched 6 days ago. when i suggested for a new watch, she said it will affect her stock and she is unable to give me a new watch. please assist.