How do you get free coins on roblox

You can't get free coins on roblox. If you see people do something like this:

Post this comment on 2 hats, 5 gear, and 3 Tshirts. Then press F5 then logout log back in and press F5 again. You should get a message from Telmon giving you 9,999,999,999 ROBUX and TIX, copy and paste this on 10 vip shirts and a note pops up and says hello you win this Robux: 100,000,000,000,000; Tickets 200,000,000,000,00.

Never fall for this trick. It can ban you if you spam.
And they aren't called "Coins."