Non Payment of Deposit

I booked for accommodation in January this year and fully paid the account and deposit. The stay ended on January 10th. I have been trying to get the owner to refund my deposit since then. His promises never materialise and he does not answer his phone. This is the fourth month since he should have refunded my deposit. He will definitely not see me any time soon. This is definitely poor management and very poor customer service amounting to ********** activities.