Disappointed in refund policy

I was at footgear vosloorus branch to do a layby refund. For sneaker I bought but when i get there they told me they don’t give refund or voucher to use it later i need to get something.reason for cancellation was I visited another footgear branch and i find promotion and sneaker that i like then I bought there thinking I will refund the other 1 i was disappointed because now i have used the money was not budgeted. And their refund policy doesn’t state all this.i should have not spend my money. Now im forced to spend money there whether i like it or.