Thank you for the detailed instructions,
I really appreciate your support.
Unfortunately, I’m completely stuck at Step 4, where the billing screen should allow me to graduate from Express Mode. As shown in the attached screenshot, I get the following error every time I try to open the page:
There was an error while loading /api-sandbox/billing/details. Try refreshing the page.
I’ve tried refreshing, using incognito mode, clearing cookies, switching browsers, and even trying from a different device — the error still occurs consistently.
Because of this, I cannot proceed with enabling billing or clicking “Upgrade account”, the interface does not allow me to continue the graduation process in any way.
So unfortunately, the proposed solution doesn’t work in my case, as I have no way to activate billing or exit Express Mode. My account remains locked in its current state.
Please let me know if there’s an alternative method or if this issue can be escalated to the support team.
Thanks again for your help,
Federico