newbietolaw:
I email and called on friday, when I called on Friday, all i got was hold and music for 10 minutes, I email them asking to call me so we can talk or we can work something out.
Getty Images is one of the premier media image companies in the US (as well as other countries). Getty sends out hundreds of letters per day regarding copyright infringment. That said, ten minutes is not a long time to be on hold for the department dealing with these issues. I recommend calling them and staying on hold as long as it takes (or until your call is dropped). Have a pen and paper handy so you can write down what was discussed or how long you remained on hold untl the call was dropped (by them, not by you).
As for email, you indicate you sent it Friday. Today is Monday. Given the volume of issues, it is reasonable the company has not responded. Furthermore, the company has many offices on both coasts and in the midwest. Several east coast companies are running a little slow today. Out of what sate was the letter originated? If the company does not respond in a few days, forward your message back to them indicating your desire to follow-up. Hopefully, you were very careful and brief in what you stated.
If it does come down to needing an attorney's help, find the right attorney. Those who specialize in this area have handled a gazillion such letters from the main media outlets and can often handle it for a minimal fee (much less than $875 and without a $1,500 retainer as another poster indicated). Futhermore, it is most likely (given volume), this was handled by an internal department under the oversight of an in-house attorney.
The attorneys who specialize in dealing with the major players know how to handle it and will likely not charge you a huge retainer fee (they will have seen the same notification hundres of times, will have responded, and will understand what it takes to settle). Getty often goes after an amount by image. E.g., if a company or person has misused 20 images, then Getty may send a letter indicating that $20k is due. Even in these situations, folks have been able to settle for under a few hundred.