Change of billing date and new plan

I have ordered a new plan to start on the 28th February 2026, but I also want to start a new billing date for the 1st of each month. The only dates I can think of to do this is between 28th Feb 2026 to 1st March 2026 (1 day without smarty service). Can I on the 28th Feb 2026, start a new plan and at the same day, turn off auto renew, then put auto renew back on again the next day for the 1st March 2026 to start a new billing date on the 1st March 2026? Also will I lose my new plan if I put auto renew back on?