The page gives 0.60 mL per serving and a 60 mL bottle.
60 mL divided by 0.60 mL is 100 servings. At one serving a day that is 100 days, which is 400 pumps, more than three times the stated 30-day supply.
Either the serving volume, the bottle volume or the 30-day label is wrong. Check servings per container on your bottle, and see the existing pricing guide for cost-per-day on the site's stated supply lengths.