using sim clone on lost sim card

[scrt]

Hi,
Bought a phone and lost the phone. Petro Cda phones are overpriced for what u get and camera grainy on there top of line phone. Would like to buy an unlock phone and use there sim card for I would like to have them as a provider.

Rather than buy another PC phone at expensive prices, would prefer to buy a sim card (PCda wil sell a replacement card but no sim card). Since I lost my phone, what happens if I buy a replacement card and someone is using the lost phone? My other option is buy a new PCda phone, take the sim and use on another phone. Just hate the expense of buying two phone to get a good camera phone.

Tx for your reply