if you add a date to your website (and indicate how long pricing remain valid), you should be safe...
It's like advertising in a newspaper. Nobody is going to try to use an advertisement you placed ten years ago against you. The same holds if you clearly indicate the date on your site... People can simply see that the prices are old...
Same thing if you indicate that prices can be changed without notification...
if you add a date to your website (and indicate how long pricing remain valid), you should be safe... It's like advertising in a newspaper. Nobody is going to try to use an advertisement you placed ten years ago against you. The same holds if you clearly indicate the date on your site... People can simply see that the prices are old... Same thing if you indicate that prices can be changed without notification...