Tried 2 different numbers and couldn't register, says the numbers were used by scammers apparently. When I eventually managed to register, it blocked the subscription. Pile of rubbishCustomer service is non existent, you need to wait for them to reply 1+ day, no instant chat at least. If I needed an urgent call, what's the point?Luckily another provider worked and had no call lag. I tried viber before in the past and the call lag was bad