MaxMind has been great. Some common things are that customers order with a China IP for example, but say they are from the USA. The customer then sends in a ticket asking why their 'order' has been marked as fraud. All we do is just ask for verification proof
Add the FraudRecord Module if you are using WHMCS. It is quickly picking up in popularity. i have been able to identify several fraudulent/spam orders within a couple of minutes of signup.
In my 11 years as a host, if its a true scammer that signs up and marked as fraud then they never contact you asking why the order was marked as fraud, they just move onto the next host to try. in the case you mentioned an IP from one country and they say they are from another country, then i wont even ask for ID as i would not accept the order.
A thing to consider tho - what about if I am on holiday abroad and want to get some hosting? Or I am a company with offices in multiple countries? Or simply travelling a lot? In all cases there is a good chance that my billing details will differ from my IP or have other missmatches (address lets say). So denying a service to such a person, without even trying to contact them and see where the truth lies might result in a lost valid prospect. You said it yourself, most frauds would do anything to hide from you - deny answering calls, move on to the next target and so on...but why not making the effort and checking what is the case. In my experience clients with IP missmatches are 50/50 on the clean/fraud scale. That's the whole purpose of the manual verifications, to clear all doubt about the credibility of a certain client :rolleyes2
same here configured Maxmind along with their telephone verification service, we get very few fraud orders. We also have a whmcs addon that if we need clients to provide documents we just direct them to a page in their client area that they must complete before an order is approved.
Which system do you use? I've seen a module recently which does this job just not sure if it's really worth it.
It came free with whmcs and not sure if whmcs still does that.