Ok. Then it took effect from 22/1 and you can move out on 22/2
If they refuse to give your deposit back you can sue for it.
You need to write and set out your losses and request a refund within 14 days of the letter of claim, or say you will go to Court within 14 days. You should make sure you send this signed delivery and keep a copy.
If they do not refund you then you can issue proceedings in the County Court. You can either do this online at: www.moneyclaim.gov.uk or by completing form N1 https://www.gov.uk/government/publications/form-n1-claim-form-cpr-part-7
and take it to your local County Court.
The Court will then issue a claim which a copy will be sent to the Defendant who will have a limited time to defend it, if not you can enter Judgment and enforce.
If the claim is for £10,000 or less it will be a small claim so you will not need legal representation. Over this value you would need representation for trial.
Can I clarify anything for you about this today please?
If not I would appreciate a 5 star rating for my answer, the button should be at the top of the screen. If you need more help, you can ask follow up questions for free and I would be delighted to assist. Thanks!