Guys, what ever you do, keep this in mind...
A sim card CAN be copied from one to another without any issue. So if you go to Pettah and give them your SIM, they'll do it for a very small price.
But what you might pay in the future may be way bigger..DONT hand over your sims to other people for copying..!!!
There are kazillon reasons...
for one, They do it by copying the SIM's image to a PC and then from there, to another SIM.
The point here is, the IMAGE IS STILL IN THE PC!!!! He can copy your SIM to another black one after you've even forgotten you did the exchange.
The duplicate SIM is INDISTINGUISHABLE from the original, as far as all the security of GSM up to 3G!!!
So if the shop owner hands over your SIM to another guy, the calls he make are as good as calls you make...
With the current security situation, I strongly dont recommend it.
If you want to do the copying, buy a copier, and do it.
That way you learn something and stay on the safe side....
EK eke kollo lesiyen ahu wenne na thama...but we have to be alert of these things dudes....
Keep rockin...