Capital market regulator SEBI has widened its probe into suspected investment scams through mobile SMS, WhatsApp messages and also through some websites. SEBI wherein investors are lured into promise of huge returns after initial payments. In these messages, the investors were being promised 200 per cent assured returns on deposit payments of Rs 25,000 along with promise for trading tips. The messages also promised monthly gains of Rs 25-50 lakh.Two individuals were on yesterday restrained by the watchdog from acting as investment advisors. At the same time, Sebi has also cautioned investors to take their informed investment decisions without being influenced by such messages and advices and to deal with only intermediaries registered with SEBI.