So I applied for capial one card, with the app i put down the gross household amount which they requested so i put down what i and DH make added up together, well i call cap one to check on my app it was approved, good new, bad news they only giving me $300 limit

with what me and DH make you think we can get like $1000 cl. well i suppose i will just charge the card for a few bucks each month and pay it off before the apr kicks in, of course in APR was 14 or 19%, cant remember which card i picked out. oh well,
not so much a question, just upset i cant get a high CL, my HSBC went from $300 to $500 last week, i've had that card since july 07, soon enough that CC will start helping my fico right?
FICO2/10=EQ= 564
FICO2/10=6012/10-FACO TU 578;3/10=643