steam said i accessed beta but i really can't access it, so how do i do it????

[brazen steppe]

i swear i used the code "cellsalphatest" in the beta version and it said "Success! Beta unlocked!" but then i went into the game and nothing changed!

[sand walrus]

no betas are active at the moment

[vagrant slate]

You didn't click the blue button

[brazen steppe]

what blie button???