No, Ozmosis will cover the costs of any change of mind or faulty product return.
To return an item you purchased online you will need to follow the free and easy 2 step process, see below.
For all the details, jump through to the returns page here. Ozmosis will cover standard postage costs for items declared faulty, under warranty or if the incorrect item was delivered to you. The postage on all other returns is to paid by your good self.