No Payment of Returns ,threatening me with Jail

I made 2 investments with this Co ,after several attempts to contact them no response from them about my investment and yesterday they sent me an email from activeclients@finalincome telling to stop what I am doing cos I will land in JAIL for 15 years . They ARE the ones who should go to jail for *****ing *****ing from and deceiving vulnerable Africans . All I am doing is trying to get back my hard earned cash from you let alone your 'High returns ' that you knew from the start you won't be able to afford . They are nothing BUT ****** and its good the SA Banks froze their Bank accounts. Maybe we will be able to claim our deposits from the banks . They can't even spell .