********l suspension

i have an existing contract with intellicell which payment was due on the 1st, they suspended the cell services which is fair but i have another phone that was paid up months ago and now they ****** suspended this phone as well i don't owe them anything on this one the contract was paid up it's been a year now. this is the second time they are doing this to me. how they can they block a phone that is no longer on contract. this is the worst company ever