Hi Dona
Perhaps the first thing to do is cancel any future payments so that the sum-at-risk is capped at the three contributions that you have made so far. You should contact your bank immediately in this regard.
You should write to Zurich and advise that you will be making no further payments at this time as you believe that the policy was not suitable for you. Do not cancel the policy at this time, but tell Zurich that you will be seeking a full rebate of all monies paid.
The next step will involve engaging with deVere. In order to give you better advice in this regard can you please say what country you live in (and did you buy the policy from deVere in that country)?
You might find that deVere will contact you before you contact them. This is because the day you signed the Zurich documentation Zurich paid deVere (and deVere paid your "adviser") thousands of dollars - possible up to $18,000 or more. Zurich will now want to claw that back, and the "adviser", who has no doubt already spent his/her share, will desperately want you to keep up the payments.
If you are contacted by deVere I strongly suggest that you say that you are happy to engage with them, but only in writing. Everything from now on must be documented. No meetings, no cups of coffee etc.
Please let me know what country you are in.