@Malzaeem, it usually takes up to 72 hours for the credit to appear. Not sure if the long week-end might extend that a bit. More importantly, are you sure you are eligible for the $25 credit. Depending on the promotion, it might only be available for on-line activations (not in store).
If you are sure you are eligible, and it doesn't show up by today, I would contact the moderator team via private message and inquire about your credits.
Click here to send the moderator team a private message. Their hours are: Mon-Fri 9AM-9PM(EST) & Sat/Sun 9AM-7:30PM(EST)
You can find information regarding the moderator team by following this link.
