Disgusting service at Linton Grange Spar

On 26 Jan 2024 I shopped at that particular spar and spent +- R700, off I went and continued my shopping, found myself at Spar in hunters retreat and purchased the Spar brand Canola oil. I managed to find canola oil.cheaper at checkers, bought it with the intention of returning the spar oil. Linton Grange is closer to where I live and shop there frequently. Needed to purchase dough and pay my municipal account, so decided to take the oil back to Linton Grange. The oil went from the cashier,the supervisor, the floor manager and assuming the store manager whom all refused to take back the oil, the one manager was willing to take it back if I was going to be taking something else to the same value, keep in mind I had proof of purchase as well. I was appalled at that service because they blatantly told me that I need to return the unused, unopened oil to Hunters Retreat where I purchased it. Not taking into consideration that I had already purchased from their store earlier on , I paid my municipal account at their store and was going to purchase bread dough! They refused to refund me R70 instead insisted that I return to the store where I purchased the oil. I'm a customer, purchasing a branded spar oil, it's not for me to consider whether it's a franchise store, same owner store etc...I have never been told this hogwash at the other retailers( which mind you is my first preference to shop at) I have bought and returned items even non branded items and the hyper or smaller stores always assisted! I'm utterly appalled at the service I received today and it will take alot for me to step foot in that store again!