Complain

I bought a pair of shoes on the 5 October and I realized it was the wrong shoes .So on the 8 October I went to the store for refund .I was told they don't have the money I must come around 10-11am .Well I went again on the recommended time and I was told the manager handling the refund is not around to help and the second time I went 2 days after ,and I was told the same reasons and this time the manager specifically said that they didn't have money and mind you this Time is around 11 am and they said they don't have cash , people were using cards.I went and I wrote an enquiry on the experience I had on their website ,up to so far no communication has been made .The shoes were still in tact(not worn ) and I had pay slip .I didn't like they way they treat the customers for refund and if they secretly planned not the refund me and give unnecessary excuses why they can't.I still want compensation for the refund and they are still within the 30 days returning policy.