I understand. Then the problem is with the roaming agreement. A friend of mine has also noticed that the service does not work in cambodia last year despite the fact that there appears to be a roaming agreement there.

That was the reason I was so angry with 09 company, I bought their card because I didn't want to pay more than 2€/min that Vodafone Spain charges outside Europe, and got no coverage at all in South America.

Also it wasn't some type of punctual problem because I stayed in Ecuador during two months, came back 5 weeks later and didn't get any type of coverage also.

OTOH, I used them in Singapore and they worked very well. It seems that when they're good, they're good and when they're not, they don't work at all.

I guess anyone that uses yackie should also take note of that.

I suppose the yackie people monitoring this threat should contact 09 and try to find a solution about this..

Some things are probably beyond their control and that of O9....not to put one region of the world against another, nobody can dispute that not being able to provide service in Switzerland is a major major problem for those who use O9 Switzerland being right smack in the center of Europe...O9 has been around for a couple of years and has made no effort to remedy the situation about Switzerland (which I simply cannot understand).....Yackie knows about it too but they've done nothing.

An explanation might be that they are using Swisscom roaming agreements.

And Swisscom can't roam in its home country - that's why ;-)?

I'm wondering, was the problem that you didn't get any callback or were you not actually able to register to a network?

I was unable to register in Ecuador,Peru,Chile and Argentina.

I received callbacks in Bolivia and Brazil (making a call from the mobile) also received sms.

I couldn't receive calls (people calling with a fixed line from Spain that worked when 09 card was in Spain, so its not the problem in source line) in Bolivia,Argentina,Brazil (in brazil they have european frecuencies).
I used the providers in each country that 09 customer support told to me to use and tried others also,without sucess.

In Ecuador,Peru,Bolivia,Chile,Argentina and Brazil I could make and receive calls without any problem with Vodafone Spain pay as you go card.

I will travel to Poland and Ukranie in December, and I will report.