Acumbamail

I had high hopes for this deal and thought I would get solid performance in a lifetime deal. What I find instead is confusing, partly in Spanish, complicated, and hardly usable for me. I need integrations with other programs (WordPress, Zapier) and a clear, understandable structure. I can’t even find list IDs. Everything is hidden somewhere. I am really frustrated. Double Opt-In Emails seem to not be delivered. At least, i can't find any under several testing email addresses. I’m struggling with this system.