got a call.. traced number went to diva yoga.. they said that phone number is just a fake or an example

I wish to know how to stop this number from callin my phone. Can you please help me?

I've been charged 3 times $4.50 from (514) 555-1212, calls I did not make.. How can I get these reversed?  Bell will not reverse them...

Government grants and other b***s***.  Calls numerous times.  I've figured out they are using the Asterisk open source pbx (cheap b*****ds) to do there auto-dialing.

got a text from this number saying"Telefonica 02 UK Ltd: You have won 418,000.00 Pounds. Contact the promo coordinator for your prize. Send Email to: inquiry @ o2.co.uk"

same thing as giovvani...call came about 3:45am but there was no one on the other end  whats the freekin deal with this number?