a problem with my sim card in my sony ericsson F305?

amm the thing is like this I have blocked the sim card i know which is the Pin code but i had turn off the phone and when i turn it on again it only ask me the puk code,i know that the puk code is brought it with the chip.In that moment I didn't have the puk code and I think that like 10 times i was trying to guess the code I turn it off and turn it On again and it appears Invalid Sim and only can make me call emergency and right now I have found the card were it appears the PUK but in a internet page appear that Entering a wrong PUK code ten times in a row disables the SIM card permanently i want to know how can this not ocurred, that the sim card dissable? what do i do?
I tried in others phones and it appears the same Invalid Sim...!
 
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