Poor escalation process or query resolution for repair of Faulty product

I purchased a double door defy fridge and Explorer decoder in 2018. After a few months the freezer wasn't freezing. I have lost the receipt of purchase and my bank cannot seem to locate the payment but I remember filling a record and that you keep duplicate receipts for at least 5 years at minimum. I have been back and forth at Trade Route game asking if someone can assist me to look for the transaction to be able to be able to book in the fridge for repairs before the warranty ends with no avail. I kept on being told that I need a receipt. I explained that I lost the receipt and I have lodged a complaint for my bank also for somehow not having record of this. I asked the consultants at Game if there is other alternative. It seems everybody there is too lazy to check with me on your records the proof of purchase of that fridge. I mean why do you keep the receipts on your side anyway. For exceptional cases such as mine. Since 2018 I have had a fridge that only partially freezes at the 2 bottom shelfs. I cannot use the fridge to its maximum and I am having to do shopping more than the once a month that I usually do because the frozen item root before time. I have waisted petrol and money calling, driving to Game to but beg someone to assist me. I have also been up and down the mall having to stand in unnecessary lines to replenish my groceries. Now with COVID I have continuously put my life and my family at risk because I have to go buy food. Find the receipt and fix the fridge Live up to your end of the warranty