I just got a credit card this past month with capital one....?

its the first one ive gotten ever...my credit line is 300 $...i am ready to pay them back ...i was wondering ....when will i get 300$ again ????....this is kind of stupid but i am guessing someone else may have this same question

you can call up the company after you have spent your line of credit and make a payment over the phone. you will then get back your 300 credit line to spend as you will have already paid them the money for the initial spending limit. if it is capital one i would suggest cutting up the card and leaving your credit line open but dont ever use the card again. call every once in a while and see if you can increase the credit limit. this will be good for your future credit and credit cards.