Hi there! I understand you're having trouble scheduling appointments through the Grifols Plasma Donor Hub. Let's figure this out together.

Could you please share a bit more about the issue? Are you receiving any error messages when trying to schedule, or is the option just not available? Also, it would help to know if you've been able to schedule appointments successfully before or if this is the first time you're encountering this problem.

With your iPhone and iOS version, there may be a few steps we can follow to troubleshoot this issue effectively.

Encountered delay please retry. Have deleted app and reinstalled and restarted iOS phone

Thank you for sharing that information! It sounds like you’re encountering a persistent issue with the app, especially the "encountered delay please retry" message. Since you’ve already deleted and reinstalled the app, as well as restarted your iPhone, we can explore a few more steps to resolve this.

1. Check for App Updates: Sometimes, running an outdated version of the app can lead to issues. Please check the App Store to see if there's an update available for the Grifols Plasma Donor Hub. To do this:
- Open the App Store on your iPhone.
- Tap on your profile icon in the top right corner.
- Scroll down to see if the Grifols app has any available updates.

2. Check Your Internet Connection: Ensure you have a stable and strong internet connection, whether through Wi-Fi or cellular data. An unstable connection can cause delays in accessing the app's features.

3. Clear App Cache: Although iOS doesn’t provide a direct way to clear an app's cache, you could do this indirectly by:
- Going to Settings > General > iPhone Storage.
- Find the Grifols Plasma Donor Hub and select it.
- If there’s an option to 'Offload App,' choose that option. This will keep your data but free up some space, which might help.

4. Try Scheduling through the Website: If the app continues to give you trouble, you can also try to schedule your appointment using the Grifols website. Visit Grifols DonorHub and log in to see if you can manage your appointments there.

If none of these steps work and you still face the same issue, it might be helpful to check for any ongoing outages or technical issues on the Grifols side. You can visit Reddit discussions where users often share similar experiences, like this discussion that may provide insights on the app's status.

Are you able to try some of these steps?