How have the CSA got a hold of my bank details?

April 10, 2014

I separated from my ex 5 years ago and pay money into her account each month for our 2 children. All was going well until she contacted the CSA.

They have been involved for the last 12 months, The payments remained the same up until I contacted them regarding the birth of my 3 child with my new wife, I now find the payments have changed but also they’ve taken money out of my account without my consent.

I was paying my ex via standing order so the CSA never had my bank details nor have I ever disclosed them to the CSA. How have they got my bank details and is this legal?