I was a student in London and i found a room from this agency and paid 325 gbp for deposit.. I paid all of my rent also i have some documents about paying my rent and then i decided to come back my country.. I gave a notice before i was living there.. I moved out from this room after 1 month.. They said to me that you are going back but we will pay your deposit but you have to give a bank account.. I gave them but i havent paid my money back.. Also I sent a lot of emails them but they didnt answer me.. Im in my country now, what should i do?