A DTC "chill" does NOT mean that a company can't dilute. A chill means that one or more of the services you listed (deposit, withdrawal or transfer). If all services except custody are suspended, the DTCC issues a legal notice refers to this as a DTC Global Lock or just a suspension. I have seen stocks with Global Locks continue to dilute, in one case massively dilute.
I have seen no verification that the DTC has suspended any of it's services for MDGC stock. TDA won't allow buying of of the stock and has supposedly said a DTC chill is the reason, but the specific service(s) chilled have not been posted here.
A DTC chill can be an ominous sign as it may indicate there is a concern about the legitimacy of shares in the float (such as unregistered, non-exempt shares) and concerns about the transfer agent. If there is a chill, Val Westergard should acknowledge it and see if it can be resolved.
There is an iHub forum for discussion about DTCC issues which includes a list of stocks that have been included in legal notices regarding suspension of services or being exited from the NSCC CNS. MDGC is not on the list: http://investorshub.advfn.com/boards/board.aspx?board_id=23867
Keep in mind that many brokers do not use the DTCC for clearing and settlement. That said, many do and I haven't seen anyone state that a broker other than TDA has placed restrictions on trading MDGC stock.
News 
Market Data 
Discover 
AI
