Active Systems Stellenbosch

I bought Printer Cartridges (did not work on my printer) & Fan for my laptop (was faulty) - they shipped to me, I paid postage, there was an amount left which they never mentioned until I queried, and still had to wait few weeks for refund. After I returned everything I got from them. They openend the carts & printed prior to sending, I never printed 1 page. Now he claims I cannot return because it was opened, but THEY opened it. Manager does not want to refund, Gives no reason. They did get a replacement fan, which he did not want to send unless I pay for shipping. Because I a live approx 1000Km from there I preferred them to refund instead, because if anything goes wrong I struggle to get service from them. Everything was returned to them, they accepted. So he kept everything, but refuse to refund. He cannot return to me because it is not working. Sent a few emails, now he ignores me. I do not want to do any business with him again, only want my money.