Oscar's letter program is a great value, he knows the copyright law inside and out and has handled over 800+ of these letters. You get a letter sent to Getty which will stop Getty from contacting you directly, they must go through Oscar. Should Getty decide to respond you get a follow up letter. I would consider using Oscar's program if you are not going to fight it yourself and I would certainly do it before I gave a penny to Getty.
If you want to fight it yourself all the information should be here in the forums plus the people here can offer good advice, but you must ultimately decide what is best for you and your situation.
If you want to fight it yourself all the information should be here in the forums plus the people here can offer good advice, but you must ultimately decide what is best for you and your situation.