The British mother in the internet adoption row says the process has been "very traumatic".
Judith Kilshaw and her husband Alan adopted the twin girls even though they had allegedly already been "sold" to another family.
The couple from Buckley, north Wales, used the internet to find children to adopt. They say they were unaware the babies had already been placed with a Californian family.
Mrs Kilshaw, a mother of four, says the girls, Kimberley and Belinda, have settled "absolutely beautifully" into family life.
She told BBC News: "I don't think they were aware of anything, it was traumatic for the adults, but they were well looked after."
Her husband said he would advise anyone thinking of adopting via the internet to take great care.
He said: "It is vitally important that before you go to the US that you are dealing with the correct people. Obviously we would not want anyone to go through what we went through.
"At the end of the 30 days we were in the US we were running out of money and it was getting very stressful."
Mrs Kilshaw added: "I think we have done the best thing possible for the twins and their mother."