Adwords Skewing Suggested Bid Rates?

I ran an AdWords campaign a bit ago and had something happen to me that was pretty frustrating.

I am unsure whether it was an anomaly or not, so I'd like to know if this has happened to any of you and if it's something Google does often.

I had one of those "Buy $25, Get $75 Free" coupons and spent a couple days doing some keyword research. Over the course of two days, the Suggested Bid rates did not fluctuate much when I was researching - only by a few cents, nothing major.

When I came back and picked out the keywords I wanted (around 10-15), they were all in the .18-.25 cent range. I then initiated the campaign process, created my ad, and put my credit card on file.

When I went to add my keywords to the campaign, every single one was between $1.50 and $2.25 per keyword. Now, I can understand if this happened for just one keyword, but to have 10-15 keywords that are all $1-2 more than Google was showing just five minutes before launching the campaign...that's kind of sketchy.

I called support and they did say it was unusual for something like that to happen and admitted it wasn't showing the correct information. But by then it was too late - I had already paid the $25 and was stuck with a bunch of keywords that were far pricier than I had ever intended to pay.

I don't know if this is something that happens infrequently, or it's something Google does intentionally.

Have you ever had this problem with AdWords, before? Let me know about your experiences, would love to hear about them.