Item listed with R8 000 extra with 24 hrs

My experience with take a lot. Guys be careful.... I woke up to an R9 000 extra on same item. I was told the rules are mentioned on their terms and conditions and it's normal since it's 3rd party store

The ITEM HP Pavilion x360 was listed R12 999 not on sale by the way and the following day its was R21 999 with the claimed sale... I called them they said its the third party store... Wow R8 000 extra..