Issue with Text Field Character Length

Hi,

We are attempting to add a text field to our WooCommerce site using your plugin, which requires exactly 8 characters. However, when testing it on the frontend, it allows us to enter text that does not meet this rule (for example, a text of 3 characters) without displaying any notification and allowing us to proceed to the next step of the checkout. Could you explain why this is happening and how we can resolve it? We appreciate your assistance.