It has been a couple weeks and I still haven't seen a credit show up when I was offered $360 for a $450 purchase on EuroOptic. I emailed Capital One and they said to expect a month for it to appear online. I thought it was kind of weird because I made an eBay purchase and it showed up as pending immediately. I'm guessing it doesn't show up so people aren't buying an item and then returning it after they get the money from Capital One but I have no idea.
Yeah it definitely takes some time to show up, but this shows the correct purchase price ($3150), but not the correct pending rewards total from the transaction.
I’ll give it a couple more days before I return it. Maybe the total will change, but seems odd.
Capital One sent another 24% back offer, so I'll use that one and make the purchase from my phone. This last one I clicked the offer from the email on my laptop, so not sure if that made a difference or not. I don't have any other extensions to get in the way, nor has it been an issue with other purchases.