I purchased an international sim with a cariage charge of £0.99, OK fair enough.
 But you offer a free second sim, thank you very much, but charge £1.99 carriage, as it is now two items, although  you offer a sim free which I do not need and cannot delete from order.
I hope the sim works OK when I receive it and I put the free /£1.00 sIm in the draw to gather dust.
if you offer a free item it is totally unfair to charge extra delivery for the item which is as small as a credit card in its outer casing, and not actually required.

Can I use UK sim card in India  ,Can you please be specific about the tariffs please and whats the difference between 19.99 and 49.99 pounds sim card .How much is the validity for those sim cards ?

If I purchase a Global SIM, can I port my existing O2 UK number to the global SIM? I'm leaving the UK and want to retain my UK number.

When you go to order a 30 day Brazil data sim, it states that there is a monthly charge?

Is this because it can do a month to month rolling contract and can be cancelled after the first 30days?

I live in UK, but my family is still in Bulgaria. I would like to be in touch with them daily and I would like to know what is the best solution for me.

Is it possible to transfer in my existing UK phone number and use it on the global SIM?

Would it then be possible to obtain a PAC code and later transfer the number out again to another provider?