My new tenant received there first ESB bill which included the 300euro deposit. With previous tenants they have paid this themselves but the new guy is claiming it's the landlords bill. I understand that this deposit is not returned until 14 bills are payed on time (seems a bit excessive). What happens if the tenant leaves before this time has elapsed? Is it a case of holding the tenants deposit for the same amount if they make late payments and end up losing the deposit?