3. The roaming provider shall send a notification to the roaming customer when the applicable fair use volume of regulated voice, or SMS, roaming services is fully consumed or any usage threshold applied in accordance with Article 6 is reached. That notification shall indicate the surcharge that will be applied to any additional consumption of regulated voice, or SMS, roaming services by the roaming customer. Each customer shall have the right to require the roaming provider to stop sending such notifications and shall have the right, at any time and free of charge, to require the roaming provider to provide the service again.