Update. Talked with MR this morning. The initial "options" are determined by their marketing department. However, she talked to someone and then made a notation on my account that I wanted the Bonus versus the Certs. Said i need to call back 2 weeks after the end of the promotion period and they will manually adjust (including removing any potential certs that were earned). She added notes and her name. Seems like it should be OK, albeit manual, but won't know for certain for several months.