In regards to your query, most spare parts can be purchased by contacting our technical support team. You can contact them by clicking the LINK HERE, selecting your country and scrolling down to 'Contact Us'. One of our agents will be more than happy to assist you! I would recommend having your product to hand just in case the serial number is needed to identify the correct product.
I hope this helps! If you need any further assistance, please reach out to us again!