Of the 7 services ...
How many are VPs, and what "spec" (ram, disk, transfer) have you promised the users
How many are shared-hosting and what "spec" packages
What countries are the clients from ?
How many IP addresses in use ?
Anything else provided to the clients (doamins, ssl, management etc) ?
Where is the server, what is the spec, when is it next due ?
What payment methods do the clients currently use ?
pm'd requested info