Hi,
Is it safe to give CPF number whenever we do any purchases at any store or restaurants. I just know that CPF is similar to SSN number which is provided to us from Brazil government to track on our earning and expenses. When we provide CPF number during purchase there is very very small number which is credited back to our amount, but not sure when this amount is credited and when. I have seen few people around me sometime they provide and sometime they don't. But the main question is - Is it safe to provide CPF number during every purchase.
Kindly help me on this with respect to understand the concept of CPF number.
Thanks and Regards,
Vinod Kumar Singh