we sent authentification more than 3 times and all they do is keep saying they never received or we have to send it again. a pitty since they they feature quite a few useful payment methods.
i think paypal most famous. i always miss payal. It not working in my country.
Many of my client want to pay me through paypal but i am unable to receive payments. Other method like 2CO and WesternUnion little costly.
Perhaps the only reason he has to dislike paypal is the fact that it simply doesn't have good coverage of his home country... I say this because it's also my situation. Paypal's chargeback policy could be another reason.
IMHO paypal's security system is a disaster where the number of unhappy merchants is increasing exponentially and as far as I know there are quite a few law suits going on as we speak. They really have to get a grip and really do something about it.