I’m frustrated...like extremely frustrated! The place we set up a contract with for new windows…

I’m frustrated...like extremely frustrated! The place we set up a contract with for new windows throughout our whole house said it would take 3-6 weeks to have them and get them installed...it’s been 14 weeks...my son broke our window 2 weeks ago and I wanted them in before the baby gets here! I called and they said they have been slammed with orders...I flat out had a pregnancy rage and said I honestly don’t care how slammed you are...you don’t break a contract because you get busy! You take care of the customers you had first! I am upset with you guys and about to cancel everything and go with someone else if you guys do not get going here soon...and they said I can’t do that since I signed a contract...like you guys broke contract by being past the 6 weeks in the first place!!