Seeking advice from fellow born again Christians

I just started a new job. It’s a better opportunity than others that I have had, although I am already over worked. Working 6 days a week would not usually be an issue, I have done it before but I have a problem with it now because the company won’t allow me to take Sunday mornings off to go to church. I feel that this is a dealbreaker and that God would always want me to put Him first regardless of how good an opportunity may seem.

What do you think?