I didn't know about MaxMind, but seems like a great service. Seems like exactly what I needed. Thanks for the reference.<br><br>-- <br>Zeeshan A Zakaria<br><br><div class="gmail_quote">On Mon, Aug 31, 2009 at 8:59 AM, SIP <span dir="ltr"><<a href="mailto:sip@arcdiv.com">sip@arcdiv.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">When you start taking credit card payments (assuming you will), be<br>
careful with small payment amounts. You'll become a fraud haven. A lot<br>
of CC thieves or people who've just bought a CC number will use a small<br>
amount charge to check and see if the card is any good.<br>
<br>
Check out some of the MaxMind stuff for fraud prevention. They will do a<br>
lot of the IP geolocation checks and such for you for an exceptionally<br>
SMALL fee per transaction (fraction of a cent). It is absolutely worth it.<br>
<br>
N.<br>
<div class="im"><br>
<br>
Zeeshan Zakaria wrote:<br>
> Thanks Matt, and everybody else, very useful information. I guess I'll<br>
> have to sit again and spend time coding delays, small amount payments<br>
> for new accounts and paypal=signup email match.<br>
><br>
> --<br>
> Zeeshan A Zakaria<br>
><br>
> On Mon, Aug 31, 2009 at 12:07 AM, Matt Riddell <<a href="mailto:lists@venturevoip.com">lists@venturevoip.com</a><br>
</div><div><div></div><div class="h5">> <mailto:<a href="mailto:lists@venturevoip.com">lists@venturevoip.com</a>>> wrote:<br>
><br>
> On 31/08/09 2:45 PM, Zeeshan Zakaria wrote:<br>
> > Those who are more experienced in this business, please advise<br>
> how to<br>
> > avoid this type of fraud, and which service to use in place of<br>
> PayPal,<br>
> > because PayPal doesn't seem the right payment solution for a prepaid<br>
> > VoIP service. Also now that they have all the payments put on<br>
> hold and<br>
> > asking for a resolution, their resolution center is good only for<br>
> > shipped merchendise, not for online services. How would I prove<br>
> to them<br>
> > that the buyer who is asking his money back has already utilized my<br>
> > service by making lot of international calls, which I now have<br>
> to pay<br>
> > for to the carrier.<br>
><br>
> I've used CDR for that and don't automatically accept payments.<br>
> When we<br>
> receive a payment we compare:<br>
><br>
> 1. IP Address of user (whois normally gives approximate location)<br>
> 2. Paypal account holder email (should match sign up email)<br>
> 3. Countries for emails and ip address should match.<br>
> 4. Initial payment should be $1-$2 (i.e. noone is going to sign up<br>
> for a<br>
> service and in order to test it put down $500 via paypal)<br>
><br>
> If any of the above look suspect I ask the paypal account holder to<br>
> email me and start looking at email headers to see how sus it looks.<br>
><br>
> If it's a large amount then they have to have already been doing<br>
> business with us successfully with small amounts - most scammers can't<br>
> be bothered doing this.<br>
><br>
> --<br>
> Cheers,<br>
><br>
> Matt Riddell<br>
> Director<br>
> _______________________________________________<br>
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