Thanks for the DP.
It happened to me also. I used pay over time feature for about 6 months and Amex put a 9k PSL on my gold card. Since I never spend that much with them and it's not counted as a part of my overall util, i never tripped over it.
I also have the Delta Platinum with 9k limit and the BCP with 16k limit, and i've been considering moving some of the credit limit from the BPC to Delta simply because I only use the BCP for gas. Now, I guess i'll wait.
