If you are certain that you will be sending us a bag of laundry per week, then 2UWeekly the ideal recurring service for you. You will pay a subscription that is renewed every 4 weeks and entitles you to 4 bag "credits". You can use each credit to have one bag of laundry cleaned whenever you want within that 4-week period.
Additional discounts: paying for this subscription entitles you to a 15% discount on any additional services you hire with 2ULaundry on top of your 4 bag credits.
Unused credits: in the event that you have unused credits after these 4 weeks have gone by, only one of them will roll over to your next period.