Android's SM-DP+ download failed. Almost always a Wi-Fi issue.

Fix: Switch to a different Wi-Fi (avoid captive-portal networks), turn off VPN, and retry.

Still stuck?

Reach Openline support 24/7 through any of these channels:

When you write in, include your purchase code (the OL-… code we emailed you) and, if the eSIM is already installed, its ICCID (Settings → Cellular → tap the Openline line). That's enough for us to find your plan and diagnose without back-and-forth.