SAMSUNG Fridge Problems

In November 2018 I purchased a Samsung fridge, to have it delivered and noticed a dent on the top door of the fridge, called the Tokai store, they did an exchange. fridge number 2 arrives with a bigger dent than fridge number 1, they take fridge number 2 back to the store. A week or so later fridge number 3 arrives, looking spiffy and no dents to be seen...we think lucky number 3.....few weeks later fridge number 3 starts making a racket....due to the holidays a Samsung technician comes out early Feb and says it the motor, another exchange must be done with the store, miscommunication between Samsung and the store and the lady assisting me being on leave and another sick no-one was able to assist me. Lady that was on leave only after speaking to her last week only did she make a plan for the exchange again where Fridge number 4 was delivered yesterday (i.e. 2 months later), with yet another dent on the top door. Any advise on what to do next, do I do another exchange or choose another fridge? Do I ask for a refund and purchase a fridge elsewhere? Feeling very annoyed!!!!