PRICE CHANGE ON WEBSITE AFTER PLACING ORDER

Ordered perfume to value of R1200 yesterday morning (Tue 27 Oct 10:18) based on pricing listed on Cupidoll's website - i.e. R300 for 2 items. Then received email from Lee-Roy (Tue 27 Oct 11:47) saying price is R360 for 2 items. Responded immediately as follows \But that is not what is on your website and you are already a month into the last quarter?"Never heard from him again yesterday. My daughter checked the website around 16:00 yesterday and the advertised price had gone up from R300 for 2 items to R360 for 3 items!!!!! Surely they are obliged to supply the goods at the original advertised price? This is not the first time this has happened where the website has not been updated and they refused to supply at the advertised price. I have screenshots of the website advertising both prices if you require them. Thank you. Joy Davidson"""