I have tried this the last three times I have been wanting to purchase from Homebase and it worked. In the middle of most stores is a giant get assistance here buzzer. You press it and a countdown clock starts, counting down two minutes, if no one comes to answer your query then you get 10% off. So obviously you need to have a query or two. But for me it hasn't failed so if you have items to buy at homebase try the buzzer, what have you got to loose?