Bridge of agreement and failure to deliver wedding photo's

Absolutely disgusting service right from the start. Paid the photographer Chevon Heydenrych for 6 hours and 400 edited photos. She changed the hours one sided to 5 hours. Arrived an hour too early. Eventually stayed longer. She doesn't keep to her own delivery dates. Lots of empty promises. Then she claimed there is no contract between us. Then she threatens to delete all photo's. Due to her health condition I asked for the raw material to edit it myself. She sent me 80 lousy photos over whats app, after stating that her computer crashed. Then suddenly, the hard drive was hit by lightning. According to her the experts she took her hard drive to can't retrieve any photos. I offered to come and collect the hard drive to take it in on my own cost to my own service provider to see if we can retrieve the photos. She refuses and says the contents is private. Threaten to sue me. No photo's and no refund. I will never in a million years recommend her to take any photos.