Update: Had Skruuia active. All cookies are then wrath cookies. My mistake, sorry for the wasted bandwidth :-)
Title says it all. I am on stage 3, and even after pledging I still receive only wrath cookies. Still only wrath cookies after I use Elder Covenant. Have no idea what I might have done to trigger this behavior. To temporarily remedy this situation, I only tried refreshing the page, to no effect. I can be helpful in experimenting and debugging this, and will be watching the thread for further information.