Hi AngryCustomer91,
Thanks for posting and welcome to our community 🙂
I'm sorry to hear you're having an issue with the mobile.
If we have sent a new SIM we're unable to re-activate an old one.
We're also only able to post a SIM to a UK address as Enlli has advised.
If we've sent out an activated SIM you can then post this on to an overseas address.
Alex_Rm