Sure thing, since you run a business I am sure you understand then that what you present on your site, advertising or labeling is your responsibility and is part of your business.
Again, the options on the shipping pull down menu on their website clearly identified Priority 2-day that cost more than the standard.
The receipt I was emailed from the company clearly shows Priority 2-day, again with an increase in the cost.
My thoughts are as a customer is that I made a purchase that will get to me in 2 days with a reasonable understanding that I ordered it on a holiday weekend and it would not ship until Monday.
If you are of the understanding that I am being unreasonable, then that is fine. I paid for 2 day, I was confirmed 2 day but it is going to take 4 and it's some other entities fault. I did not choose this entity, the company did. I made no arrangements with this entity, the company did. I did not program their website to show 2 day, the company did or had someone do it. I did not send a confirmation with 2 day, the company did.
Again, you may have your thoughts, I have mine.