Americans in London. We bought two sim cards for our iphones. Installed but had questions. Tried connecting via browser or app on iphones. They are fairly quick to respond but the verification process for us was beyond difficult because they had different information on us than we had. Of course they want to protect their customers but the customer support people lacked intuition to see that there was a information problem. We never received any support because of the verifcation problem. Later, post vacation after disposing of sim cards we get notified of a unknown automatic renewal. We requested a refund. But it took 3 days and exceed 12 hours on the chat line to finally get a person with authority to give us our refund and cancel our account. Why customer service stonewalled us so long is beyond me. So frustrating.