Does anyone know of or have any actively working discount codes for Millionverifier?

Quick question. I have 30 domains, 60 mailboxes. And for each mailbox should I have same sender name or should I make different variations of my name for each mailboxes? Have anyone tested this thing? Does having same name hampers the deliverability? Would love to know your thoughts.

What is the best way to track whether or not they show up to the appointment with my client? How can I trust whether or not it was a no show, a show no close, or a show close? And, if a show no close, what would be some ideas to track whether or not it closes in the future after nurturing? As always, any advice, resources, thoughts, and opinions are appreciated. Thank you in advance!

I'm curious what is seen as the best model if you don't have case studies yet. Furthermore, how you adjust your pricing and contracts accordingly. For example, If you do a pay per lead structure, how do you calculate what you will charge per lead for that market, and if that changes, or you go after another market, how do you seamlessly adjust the contract according to that difference? Additionally, if pay per lead wouldn't be the best structure, what is, and how do you determine what you charge? Any advice is appreciated. Still learning as much as I can and very new to this. Thanks in advance!

What's a reasonable list size to pull from trustedleads.io initially? 100K? 50k? Is there a point where it's just too much to where, most of it won't be up to date down the road? - Keep in mind, I'm just starting out, have about 15 email addresses to send from.