what is your phone model,brand?If the phone display sim card rejected because of incorrect puk code.You can go to service provider office and get new sim card.There is another reason available for sim card rejected problem.If the phone locked to some network.It display sim card rejected when you insert another network sim card.Check which country and network it is locked now.Get unlock code from the site
Unlocking4u.com for GSM network locked phones and unlocked it easily.If it is an iphone get remote unlocking service from the site and unlock it.Then use any GSM network sim card.
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