Hide the PMPro Account page until a user confirms their email address via the PMPro Email Confirmation addon.

pmpro_hide_account_page_until_validated.php

<?php
/**
 * Update your membership confirmation text then to include a reminder about confirming your email.
 *
 * This recipe assumes the PMPro Email Validation Add On is installed & actived.
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
*/
function pmpro_hide_account_page_until_validated() {
	//bail if pmpro or the email confirmation addon is not loaded
	if(!function_exists('pmpro_getMembershipLevelForUser') || !function_exists('pmproec_isEmailConfirmationLevel'))
		return;

	//check if we're on the account page
	global $pmpro_pages;
	if(!is_page($pmpro_pages['account']))
		return;

	//get user and level
	$myuser = wp_get_current_user();
	$user_membership_level = pmpro_getMembershipLevelForUser($myuser->ID);

	if(pmproec_isEmailConfirmationLevel($user_membership_level->id)) {
		//if they still have a validation key, they haven't clicked on the validation link yet
		$validation_key = get_user_meta($myuser->ID, "pmpro_email_confirmation_key", true);
		if(!empty($validation_key) && $validation_key != "validated") {
			wp_redirect(pmpro_url('confirmation', 'level=' . $user_membership_level->id));
			exit;
		}
	}
}
add_filter('template_redirect', 'pmpro_hide_account_page_until_validated');