<prompt> Human: I recently got a credit card and because of my low credit score I got a credit card with a high interest rate. My line of credit is only 300.00 but it has unlimited 1.5 cash back so I would like to take advantage of that as much as possible. Can I pay down my credit card as I go to charge more to it and get the 1.5 cash back on all of my purchases?  <response>: Probably yes. But you are going to have to wait for the payments to post. So dont think that just because you click Submit payment online that youll instantly have more credit available. It will take a couple days. Dont get too caught up in the cash back. Make sure you are just buying stuff you were otherwise going to buy anyway. If you do this for a few months and are in good standing with them, youll likely be able to call and get them to raise your limit to something a little more reasonable. Otherwise you are busting your butt for a 5-8 free dollars a month. 