Do security deposit grow interest and and what if u paid all the repairs they cannot keep your deposit they can’t keep your deposit for nothing if u paid for all the repairs. And u have texts message that everything paid in full
Typically, no, security deposits do not earn interest. Where my rentals are, we have to pass the bond on to a government agency, who then send it back to the renter once we release it.
You don't say where you are, so I can't advise you whether to go to your local equivalent of the tenancy disputes tribunal or small claims court.