Sorry to hear of the situation. You do need a solicitor - we are an internet forum (not a law firm) so we cannot act - however I have given details of law firms at the end of this answers for you. I will continue with the online Q&A which is what Just Answer is able to offer.
The way forward would be to make a formal complaint to social services for obvious reasons. You can do it yourself or you can ask your local Healthwatch (who are healthcare consumer champions) to help you do this.
You can find your local healthwatch here: https://www.healthwatch.co.uk/your-local-healthwatch/list
If the complaint does not resolve this, you then need to escalate to the Local Government and Social Care Ombudsman.
They will investigate and check whether the complaint was dealt with properly - and whether it was correct. The Ombudsman procedure is free to use, quicker than court action and their decision is binding on social services.
You can contact them here: https://www.lgo.org.uk/adult-social-care
If that does not work, your only other option is legal action.
If legal action is required then you can issue "Judicial Review" proceedings which is where you involve the court, and a senior judge or panel of judges looks at the legality of a council's decision. If the judge(s) find in your favour, they will make an order which is binding on the public body (e.g. they may say the public body’s decision was invalid or indeed illegal) and they are then forced to act to sort the problem out. Further, if your human rights were breached then compensation may also be payable. The issue with judicial review is that the cases are quite complex, but as a result of that, a law firm can usually recover their legal costs from the council if they win the application. You should be able to have a no win no fee agreement with the law firm, to sue the council. Or if you are in receipt of means tested benefits then legal aid may well be available to you. Here are a few firms who specialise in this area :
If none of the above can help, there are pro bono (free of charge) lawyers who could assist you. You can try these firms for legal representation (they are a charity who connect you to pro bono lawyers) : LawWorks or /www.nationalprobonocentre.org.uk/finding-legal-help/
Here is another: https://www.lawcentres.org.uk
And there is this one : Advocate: Finding free legal help from barristers