I want my refund

I purchased a product on the 24th August 2018 as a gift for my wife, but decided to return it on the 27th August, because I found something else instead. The cashier tried crediting my cheque card, but was unable to due to the system being offline. I then asked to be paid in cash since the system was offline, but nor did they have liquid capital and requested that I return the following day again during my lunch hour.

I agreed that I would return even though I work a distance from Cresta. Today I visited the store to collect my money, but was told the exact same story and the system was offline yet again. This is very unacceptable and has also inconvenienced me a great deal, not to mention financially taxing too, as I am the one who has to use my petrol to make these trips to their store.