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Just curious if the Apple Card's shopping cart trick can be used to get a higher SL. I applied through Wallet and was offered 3k SL. I have not accepted or declined the offer yet. If I throw some stuff in my cart and go through the checkout is there a chance I will get a higher SL from them, or am I locked in at 3k now? Anyone have any experience with this?
Placing additional items in the cart isn't going to change the initial CL offer whether you use that method or apply via Wallet. It's possible that if you give it additional time they may offer a higher SL, but it'll boil down to your individual profile.
To add to the other good points already brought up, what they offered you will stand for 30 days regardless of what you do. If you would like a chance to try the SCT with a cart full of Apple goodies, you'll have to wait out the 30 day period until you current app expires, as GS will not run another pull on you during that same 30 day period.