I submitted an article to Elsevier which even after one week its status is still "submitted to journal" and they didn't give me even the manuscript number. I have several past experiences with this publisher, where they gave me the manuscript number promptly, but this time after one week without even manuscript number seems a little bit odd.
Should I withdraw my article and submit it somewhere else, which probably their process may be faster? The reason why I'm asking this question is that I don't want to waste my time but on the other hand I don't want to make a bad reputation for potential future submissions by withdrawing my article because their journal is pretty famous in my field (computational physics).