I wanna buy-it or do-it

A question about : Will a shop tell you if the product is going into sale

Hi,after spending 1/2 hour trying to post my 1st question this is the only section with the button at the bottom to post.\please put into appropriate section for me ....
Will a shop.... if you ask them about a particular item... a fridge freezer in my case...tell you if its going into the january sales before i buy it now and find out in a couple of weeks its much cheaper. JOHN LEWIS is the store in question..thanks