Dischem bad service

I downloaded the Dischem app and then decided to buy 2 items online because i have been struggling to get them anywhere else and i was happy to find them on Dischem App. I ordered 200ml scott emulsion and dettol antiseptic liquid 1L and i paid my order online including R60.00 delivery fee also. The dettol was on sale for R64.95. After few days of my order i got a call from Dischem saying they do nt have stock for the dettol i told that gentlemen that it is okay my order can wait until they have the 1L dettol and then they can deliver everything. He offered me a 750 ml dettol with that R64.95 that i paid for 1L and i refused because i felt that they are not being fair on me. Few days later i got my delivery with only the scotts. And they wrote on the invoice that they wil refund me the R64.95. They really did not treat me right as a customer and i wil never buy from them ever.