wtf.. not aloud to have multiple tf2 accounts?

[MasterOfDerping]

so i talk to steam support they make me wait forever then they finally tell me that im not allowed to have multiple tf2 accounts. why am i special? so many other ppl have mulitple tf2 accounts for idling but im not even allowed to have 2. and by that i mean making it premium status

i have 1 credit card and its only usable on one account? how do you get past that and use it on other steam accounts?

also allowed**