i recieved an sms that  i won 95000 is this true please advice

got the same message.its a scam .phoning cops .

I received an sms from (07) 3837 1270 informing me that i have won R95000.00. Is it true? I phoned that number and a Mr. Desmomnd answered and ask me to buy 4 R180.00 MTN airtime vouchers and give him all the voucher pin numbers. I did as i was told and the next day an sms from Mrs Botha asked me to deposit R1800.00 in the accout about to be given in order to release my R95000.00.Something was not adding up here because i sent airtime vouchers for R720.00 to Desmond and today i must deposit R1800.00.I phoned Desmond and ask him about the whereabouts of Nokia Promotion offices. He told me that Nokia Promotional offices were in 149 Nelson Mandela Drive Bloemfontein.On investigation, there are no Nokias offices in Bloemfontein.