Dissapointed customer

I recently a bought a set of break pads for my Renault clio 2014. I clearly asked the sales man for 2014 clio break pads to which he responded that 2013 pads would also work I'm no car expert so obviously I went with it.

I had them fit and it obviously it was the wrong break pads. I then continued to buy a different set at a different motor store as Midas was closed when I wanted to return the break pads.

After numerous attempts I went and returned the break pads today as I was on holiday. The manager as I assume has the nerve, first of all how can I return a product this time of the day? If I had came earlier he would have helped me. Secondly he says I need to bring the slip of the other break pads of the other store to prove that I have bought other break pads. Thirdly and finally after a long conversation and me informing him that I have driven all the way from strand to return the pads, he then tells me blatantly that he does not have money to refund me.

I'm not from Eerste Rivier, I cannot come back on a different day as I have work during the week from 8am till 7pm, what am I suppose to do.

Ps I feel highly disrespected in the manner which the manager treated me I've literally spent half of the value of the break pads in my attempt to return the break pads as they were closed on numerous occasions.

Please advise,

Best regards