What can I legally do against a dishonest attorney?

At an initial, free, consult, I gave the family attorney a $3000 retainer (credit card) to do 2 motions: Motion for contempt and Motion for Modification of a parenting agreement. She was very clear on the fact that each motion must be filed together, and also that each required its own $1500 retainer. I did not hear from her for almost a month, although I called many times. When she did return my email, saying that she had been sick, I had the wrong email etc. She assured me that the first motion was attached, ready for my approval and to be sent. It was a "motion to get my daughters ice skates and a few other belongings out of her dad's house?" I immediately called her husband/partner, and asked for my retainer back. I knew that something was very wrong. The husband agreed to comply, yet another month went by and he has yet to return the full amount. He claims to be charging $600 for the "free consult, and the phone calls (asking for my retainer back). Is this common practice? I have been unable to hire another attorney, as that was all of my money, therefore I am now out more than 4 months of back child support that the correct motion could have brought me.