broken fridge

Good day , I bought a fridge in October 2018 at best electric kuilsriver, in feb 2019 my fridge stopped working I reported it to the store immediately, after a month calling go to the store they only said we report it to head office ,they replaced the fridge in only march but now the "new fridge" stop again working . I am not prepared to go to all that trouble again. I once again reported to the store they say they have logged the call. If I don't phone they wont phone me back. this matter I reported 3 weeks ago to the store and head office , the store manager and call centre agent couldn't care less. but if I skip my payment the store will send the bakkie to me and the same agents will fone me the whole day month etc. PLEASE as this is the second time , that the fridge has been replaced , I however don't see why I must spend money on an item that is not working , its very pathetic the way you people has been treating me as a customer. What must I do with a broken fridge , I will take it back to your store.