Just noticed there's a 48 hour XP booster listed in the PS store which is listed as free. Not sure if this was done to make up for the XP bonus mix-up that occurred with the collector's edition (some ppl ended getting 24 hr instead with their codes). Will try to download it and see if it works. Just wanted to make others aware since I haven't seen other posts about this yet.
It won't work and it won't be fixed either if you used your GameStop XP Booster code for your Champions Pack. Sony sees a 48 Hour XP Booster on your Services List and assumed it was from the Collector's Edition.
They didn't help me one bit when I explained it to them numerous times, took freaking pictures of my voucher code and receipt, and they never responded back after I did everything they told me to by emailing it to them.