Faulty

Hi I'm sharney I'm so disgusted with Lewis store I opened an account last year 17 November 2021 and bought a fridge. Lewis basically sold me a faulty fridge and expects me to pay for something that's faulty. On that same day the fridge was delivered and the bulb of the fridge was broken I immediately let my sales person know. I told it would be sorted. I've been calling and messaging on a day to day basis the moment I said I want to cancel everything as it was still in a 5day period where I could cancel, they could immediately jump and someone out to check out the bulb. The guy came and changed the bulb but then the new bulb also fused and the whole house hold electricity went off due to the fridge. The man immediately got on the phone clearly stating that this fridge is faulty and they must sort me out with another fridge immediately. All that was asked from me that day was my ID number. I've been calling and messaging the sales lady and it's just another story after the other. What do I do in a case like this? If I could get the same service they gave the day they sold me fridge wouldn't that be fair? Its a more than a month already and nothing has been done to the situation for something that I purchased and it was faulty to make it seem as if I'm crazy for calling and messaging hole time ,their treatment is *********.