Service shockingly pathetic

I purchased a refrigerator online from New World in Feb and had to follow up on when it would be delivered in March only to be told by Corne that the refrigerator was "delivered ", then sorry they were out of stock. We then arranged for an alternative slightly cheaper refrigerator to be delivered and I was promised a refund for the rest. I sent through my banking details etc and was told that the accounts department only processes refunds on Fridays. Many Fridays have passed and I am still waiting for proof of refund. Corne Wagner is essentially ignoring me flat!