Brought a upright fridge-damaged 1st day

I brought an upright fridge for our company, on the 7th May 2015 from House and Home in Boksburg Rondebult Rd. When my driver fetched it we immediately started it up, we freezer part of the fridge is not aligned and when fridge part light did not work, it was to late for call it in, so I called on the 8th May 2015 and told them it did not work, House and Home said they will send out a technician, who came to our company and without my consent fixed the light of the fridge. I was unsatisfied with this and called the manager from House and Home Boksburg, explained everything again and they said they will send out another technician and I also told them to take pictures because it was difficult explaining over the phone so they can see what i mean. Another technician came on Monday 18 May 2015, checked everything and I told him I want an exchange, not fixed. They keep declining my request and I want an exchange!!! House and Home phoned me on the 21 May 2015 and sending another technician out, I've had it now.