What happens once the data volume of 500 MB has been used up?

If a SIM card has used the included volume of 500 MB before the activation period of 10 years is up, it remains activated for a maximum of 6 months from that point on. During this time, the customer has the option to purchase another data volume of 500 MB. If the customer does not book additional data within these 6 months, the SIM card is automatically deactivated by the system when the sixth month is up.