Planet Fitness is a ****

I took a contract with PF in Sept when they were running a promotion. i was told that the contract is a month to month contract and i will need 2 months to cancel. I signed a contract which i was misled to sign thinking i will just give 2 months notice. now im told its 4months notice to cancel. Y would i take membership for 24 months when i dont live in 1 area more than a year since i travel. This is a **** to get people to sign under false pretences