That is a question for creality but if what they sold you is not working then add some glue stick and see what happens. Most adhesion issues are caused by incorrect Z offset (distance between nozzle and plate. Inexpensive printers the the Creality are not built to maintain the exacting tolerance need so most folks make the first layer squished so the plastic sticks better or they add adhesive which reduces the space between the plat an nozzle allowing for better adhesion. If you happen to be printing with ABS, then there is also the fact that your printer needs to be in a heated enclosure to use ABS or it will warp and pop off mid print..
Good luck