Bad customer service

I brought a fridge at game, on the 28 of may and we received it on the 30th of may. The Friday started icing just after few days. My partner went to the store and complained and they came to check it on the 20th of June since that was the only time I was able at home. They replaced a part on the fridge and I was promised it was going to work fine and the noise will be fixed as well and the ice. The following day the issue started again and we had to go back to the store and explain the situation, other technicians was sent and told us the gas is finished. Then we returned to the store to ask that they refund us the fridge will buy something else because the fridge is completely inconveniencing us since it's not even a week old it started giving us issues. They insisting on bringing a replacement fridge and we don't want it since we experience the inconvenience with their new fridge. They refused to assist and I am struggling to find assistance