They have expired more than [months] months(s) ago and enter the number of months in which to delete them, to delete expired cards within a designated timeframe.
They were last charged more than [months] month(s) ago and enter the number of months in which to delete them, to delete cards not charged within a designated timeframe.
They were added more than [months] month(s) ago and were never charged, to delete cards added and not charged within a designated timeframe.
They are part of an order with no activity for more than [months] month(s) and enter the number of months, to delete cards on orders never completed within a designated timeframe.