For fb (b2b/b2c) ads does launching a campaign at a certain time matter still? I usually do 4am. Ads got rejected they’re being reviewed now - don’t want to burn through the budget fast

Hi all! I'm new to the mortgage niche. Currently running paid ads to get clients. Right now, I'm pricing my services as a 3 month commitment $1200 towards adspend. On monthly basis it's 1500 or PIF 3k. Is that reasonable for the market or for where I'm at in the business? Open to other ways to price my offer to get some client in the doors. Guaranteeing appointments. Thank you!