Name Above The Title Question?

There has probably a thread about this somewhere, but this is very specific so sorry if I can't find it. I am curious if every theater does this? Is it just Broadway that has this policy or does off-Broadway also do this if there are names above the title? I'm asking as I have tickets for Little Shop with Borle and Glick, but it's near the end of Glick's 2-week stint. I have been dying to see Borle and unless it extends, I don't think there would be any more tickets I could exchange to see him (and I would rather see the understudy than get a refund). So, my questions are if this production would even have this policy, if I would have to get a refund if they have no more tickets for the dates Borle is in, and if Glick would count as a Name Above The Title? I think the last one is obvious, but still curious as people still really want to see him. Again, I would happily see an understudy too if I can't exchange.

dramamama611 said: "IF it extends, maybe youd have a shot."

Maybe, but I feel like if they were to extend, Borle might not extend with the rest of the show. It's possible but we will see.

"That being said, with such a short run, only illness is going to keep them out. (And they all have a great attendance record.)"

This is great to hear. I've always been nervous for seeing shows for specific actors after my SO went to DEH during Platt's last week and still missed him.