How do i order a replacement SIM?

Hello dear

I lost my sim card 

I lost my simcard

Hey RakeshM_1606791 you can order a replacement SIM through this linkReplacement SIM Request 

This article should explain it for you:

https://help.smarty.co.uk/en/articles/1215834-what-to-do-if-your-sim-card-gets-lost-or-stolen