You can request to change your limit at any time, but any increase to your limit can take up to 30 days to take effect depending on the limit you set previously, as this allows any current limits on account to complete.
Spend limits reset will reset on a 24 hour, 7 day or 30 day basis, exactly from the time you have initially set the limit. For example, if you set a weekly limit on Monday, January 1, 2024 at 10:00, a.m. EST your limit will next reset on Monday, January 8th, 2024 at 10:00 a.m. EST.
Please note that a decrease in your limit will come into effect immediately, and it will take into consideration any spending made on the day you set the limit. For example, if you spend $50 and then set a 7-day limit of $100, you will only be able to spend a further $50 in the following 7 days.