Why isn't my Bluetooth controller with Windows phone not working?

[Windows Central Question]

bluetooth controller with windows phone not working

ok i have a windows phone nokia 365 bought Megadream? Wireless Bluetooth 3.0 Game Controller Joystick seller is telling me that i need to use icade pairing mood i can't find aand app or switch the keyboard anyway there is an video game controlller that works with this phone via bluetooth