I have this pre-paid sim that I only use for data. Every time I insert it in my phone, I get about 3 "please call me" sms's from who knows. 
Why is this? I don't even know the number offhand & I never use it to make calls. Not that I return these calls, it just bugs me.
Why is this? I don't even know the number offhand & I never use it to make calls. Not that I return these calls, it just bugs me.