Aceto Corp. Fake processing fees check Lake Success New York

I received 4-23-2017 a notice of winning $250,000 in a 'consumer' lottery. It included a claim number and requested I call to verify. The official looking letter  had a Investec Finencial Inc. letterhead. Also enclosed was a check for $2870 to cover the cost of the 'fees' that was from Acetco Corp, One Hollow Lane, Lake Success, NY. and JP Morgan Chase Bank. The check look real but with no watermark. The letter came from So. Africa. The letter asked me to only contact the phone number in the letter to 'avoid discrepancy". This is clearly a scam and should be discarded.