Remove trial if user has cancelled order for same level.

pmpro_remove_trial_for_existing_members.php

<?php

/**
 * Remove trial if user has cancelled order for same level.
 * Add code below to your PMPro Customizations Plugin - https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
function pmpro_remove_trial_for_existing_members( $level ) {
	$order = new MemberOrder();
	if ( $order->getLastMemberOrder( null, 'cancelled', $level->id ) ) {
		$level->trial_limit = 0;
	}
	return $level;
}
add_action( 'pmpro_checkout_level', 'pmpro_remove_trial_for_existing_members' );