The first monthly premium will not be withdrawn until 1-2 weeks AFTER the policy is approved. A monthly premium will be withdrawn on the effective date of the policy monthly. (Example: Your policy is approved on March 13th, the first premium will be withdrawn around March 28th and the next on April 13th, then May 13th and so on.)
Providing your bank info today will not result in a payment being withdrawn. You may cancel your policy at any time without any penalty. If the policy is not approved for any reason no charges will be made to your bank account.