Hi there! I see that the checkout button isn’t working on your iPhone, which is preventing you from buying products. Let's get that sorted out together.

To start, could you tell me if you're using the Chewy app or browsing through a web browser like Safari? Also, have you tried tapping the checkout button more than once or refreshing the page?

While you get back to me, here are some easy steps you can try on your iOS device (version 18.5):

1. Refresh the checkout page: Sometimes the page just needs a quick reload.
2. Clear Safari cache:
- Go to Settings > Safari > Clear History and Website Data.
3. Restart your iPhone: Press and hold the side button and one volume button, then slide to power off. Turn it back on after a minute.
4. Try the Chewy app if you were on a browser: sometimes the app works better for purchases.
5. Make sure your iOS and Chewy app are up to date: Go to Settings > General > Software Update and App Store > Updates.

If you tried these and still can’t check out, I can guide you through more advanced fixes, like trying a different network (Wi-Fi vs cellular) or using an incognito/private browser window.

Let me know what you’ve tried so far, and if you’re browsing or using the app, so I can tailor the steps exactly for you!