I got a text saying dat I should send my name. And phone number ref number bb12 name muyiwa adeosun phone number 08083833309 frm nigeria

I got a massage three days back that i have won 780000 pounds and that i should send my name & phone no to claim it. I'm from Nigeria

Got a call from 34609631036 that I won 115,000 GBP on the on going Nokia UK World promos, that I should my phone number and Ref 191

I received a message on my phone on the 27-06-2012  saying dat I won £115000 pls how authentic is it?                 How can can I receive the price? My number is 08137517898 my name is ogonna oliver my ref number is NK 191 And I am from nigeria