While a majority of our customers are great, I have a problem customer that I am dealing with right now where we spent 17 hours of work on a job they paid 7 hours for already. I will say that I initially gave them an estimate of about 5 hours to code a psd to html, but then they gave me 4 PSDs. And we still aren't done and they are demanding results. I'm holding firm and demanding more money to continue. Any advice?