Who Knows Omas Investment: They're Giving Me Problem

please i need advice,
I opened a cscs acct with Omas Investment stock brokers since 2004. I gave them my access bank and IBTC chattered bank certificates to verify. It was Verified quite alright. I ordered them to sell since 1st of march. Till date, they keep telling me stories. I am a student in OAU Ile-ife. I have spent a lot of money calling the stock broker in Ibadan. they have since been giving me flimsy excuses, that they are having problems on the floor in Lagos. The last thing they told me was even that i should better go to their  office in Lagos to make the complaint myself because they themselves are tired of the issue. I read that there are similar complaints by other people about them. Please what can i  do in pursuing this course. I have spent so much money on calls. Besides i need the cash, since 1st of March.
I would appreciate a reply.
Thanks