Withdrawing from my Condition Insurance choice.

As the title says, I no longer wish to hold my place at my Insurance choice. I have found other courses which I believe will be a better fit for me, both in terms of course content/structure and in terms of my future career. My query is, how do I approach this. From reading through previous threads in the same vein, I have a fair idea but I just wanted some clarification. What term(s) should I use, e.g. withdraw, release? etc.Thanks in advance, Jack.

Thank You for the advice. I have just compiled a message to send and was wondering if you could just take a look to ensure I have taken the correct approach.