Hey
Sorry to hear you are having such an awful time!
OK, yes, I have been in a similar position. Someone (I think my ex) made a referral to social services with some of the most derogatory (TOTALLY FALSE) statements possible. My children are over 9 and under 13. These "claims" suggested I would escort from home, do anything for money, had made my children over sexualised etc. The initial contact from SS was has you'd expect. The allegations had made me sound horrendous and I was spoken to that way. However, I was totally honest (yes I escort, but never from home. No my children aren't over sexualised, but they have started sex ed at school so aren't totally na?ve either) etc. I explained the referral was malicious and I'd work with them, both to prove my innocence and also ensure my children are safe!!! Our SS worker was lovely, as soon as she met us she realised the statements were malicious. I discussed everything in detail with her, gave permission for school and doctors checks etc. Within weeks we were signed off! My SW also stated "at least now you don't have to live in fear of someone trying to blackmail you, as we are totally aware of your job and believe you are doing a fine job as a parent. Your children are amazing, the love between you is astounding."
Take the positive from it. Good luck xx