Of course you can! However, this might inquire an extra cost that will be deducted from your hours.
The reason behind charging for a source file comes from a "protection" for the talent's future work, as the chances that some clients take this as a reference and just edit it or copy it directly without needing them anymore increases. If the project belongs to other categories or is non-complex, we won't charge anything for this.
Currently, we charge 30% of the initial hours for the editable/source assets*.
*For other categories, it might be less or nothing at all, as it varies on the complexity/length of the project.