For all those telling Telegran just to go, you obviously haven't been in her situation. It is much more complex than that. For a start, controlling people who see their control slipping away from them, can act very violently if they see that. It is one of the most dangerous times for a woman who has been controlled for such a long period of time. I would strongly advise you to carefully plan your escape and when the time comes, ask the police to accompany you so you are safe.
Meanwhile, you can ring Women's Aid and they will advise you of what help you can expect to receive. They will be very discrete because they are aware that you are in danger even if you have never been hit before.
At this time of the year, it might be possible for you to spring clean and sort. That way you can get your documents together, sort your clothes into a grabable pile and know where everything is you want to take with you. If you have a smart phone, you can take photo's of his financial status and send them to someone you know will keep them safe before deleting them.
If you need to call the police, you have to tell the operator and them you are in fear of being seriously hurt. That way, they should respond knowing what the situation is. Once they are there, ask them not to leave you alone with him. That way, they will be aware of how frightened you are. The courts can help you and this will help you make you case because everything is recorded. Telling you to commit suicide is rather clever, he isn't actually threatening you with violence so you may not have enough cause for an injunction but a solicitor or a refuge could advise there.
I wouldn't offer the 2 card choice to a man like this. You might trigger the violence you are afraid of.