Stax Dunkeld-No Refunds

I purchased a Philips Airfryer at Stax Dunkeld for R2599. On my way home I saw a Hirschs advert for the same item for R1699. I decided to return the one bought at Dunkeld Stax and save R900. The complete and untouched package and receipt had not left my car. The next day I returned with my purchase to Stax Dunkeld and told them I wanted to return it for a refund. The manager of Stax Dunkeld would not accept it, he told me I wouldn’t be able to return a car if I had bought one and found it cheaper somewhere else. He said they don’t do refunds. He said I should have done my homework before buying from them. Exact words. When I looked at their online purchases it will refund you in 7 days but if you buy in store according to the manager forget it. Wonderful staff at Stax Dunkeld, always a pleasure to be served by them but my experience of this manager has left a very bitter taste and I doubt I will ever purchase there again.