You can either call the manufacturer directly and request one like that, order one online, the most practical option however is to simply visit your local electronics or cell phone store.
Even if you have a smartchip with you, you cannot do it since it can only be done by the shop owner who has an exposure by inserting the smartchip. If the phone has low configuration also the smartchip does not work we have to go for a new one.
Get Smart chip from any of the service providers. It has two smart chips Prepaid & Post paid. Cellular Abroad offers SIM Card for oversees communication.