Thanks for contacting Cloudflare support. My name is Faiz and I will be looking into this ticket for you.
We're sorry to read that you're experiencing difficulties.
Unfortunately we no longer provide active support for legacy tenant APIs because we're recommending the partners to move to the new tenant model. Furthermore, we have plans to deprecate Railgun in favor of our Argo Tunnel.
I would recommend you to consider moving towards modern architecture which we have more robust support going forward.