It would be best to refer to the specific Deal Details and/or the Terms and Conditions for a specific deal.
Some deals are unlimited (use as many times as you like), some are limited to only one per day/week/2 weeks/month. Some deals are even one-time only. Some deals we may only have a certain number of vouchers available and once they are up, they will only get refilled later (make sure to follow us on Instagram as we will let our members know here when there is a new drop of codes).