https://www.wetsuitwarehouse.co.za dont buy from them

My son bought a wetsuite on the 24th of December 2024 online for R 3063 When he took the wetsuite out of the packaging the price on the wetsuit was marked for R 2 250. Yes the wetsuit was on a special according to the website, marked down from R 3404. But the tag was the R 3404 crossed out with a red pen and the new price R 2250. I phoned them explaining maybe they gave us the wrong wetsuit, but you usually pay the price on the tag? They just say it might have been an error on their side? But do not want to help us.