Central Development refuses to pay deposit money

They refuse to pay back deposit money!!!

they said we dint give enough notice. we put in notice on the 27 th to the owner who advise that Patricia will send us documents to formalise the notice, a week passed and Patricia dint contact us, we went back to the offices and found the owner again on the 3rd of Feb to advise that we dint get the paperwork only then we got the paper work. We were advised to vacate the property by 28th of Feb and the deposit money will be paid within 14 days of vacating.

on the 14th of March we phoned Patricia and she advised that she wont pay back the deposit money because we dint give enough notice.