<prompt> Human: I have a credit card that I applied for while in college, so it has a relatively low credit limit of 3000, given that Ive graduated and actually have a job. Im using over 30 of my credit line each month, so I want to increase my credit limit in order to improve my credit score. However, how do I determine whats a reasonable proposal? Ive seen various sources suggesting double my current credit limit, but given how low my credit limit is, I dont think it would be too aggressive to ask for a higher. But is asking for 3x or more considering outrageous? Whats a good guideline relative to income?E: Thanks for the advice! Just wanted to check what was considered an unreasonable request, ended up getting a 4x increase.  <response>: 3x isnt outrageous. In fact if its an American Express card its the recommended amount to ask for. 