well, in more than five months of advertising with google, i've never had any major problems, except that almost every time i add new keywords, an ad reviewer invariably suspends one of my ads for some reason or other.... almost always erroneously. this week i was told that i had misspelled the word "how" and it should actually be "now."
i replied that that the word i wanted in my ad was indeed "how" and by using "now" it would not only change the meaning of the ad, but it would turn the sentence into nonsense. they turned the ad back on, but it took *two days.*
this sort of thing happens at least twice a month! but that's been the extent of my difficulties... up till now.
for the past few days, i've noticed the discrepancies and the delayed reporting just as you've noted in this thread. i wasn't too bothered by it, because the clicks were coming. although, even a day later, it still didn't look like i was paying for every click i got, as my logs seemed to show far more clicks than the adwords interface does.
again, i wasn't too worried about it.
but it did occur to me that the downside of that is that ultimately it will effect your CTR, particularly if, as they "fix" the problems, they report impressions first... and then much later, or not at all, report the clicks.
which seems to be what happened to me.
tonight, they slowed all my campaigns, stating they had insufficient CTR. i wrote a polite letter to them saying, in essence, "gosh, i don't think so. and, by the way, haven't you noticed your software is running kinda screwy?"
a couple of hours later, i got yet another notice that i was not meeting minimum CTR, which i know can't be the case, as i paused all my marginal ads in the interim and only the super high performing ads were left on.
a couple of hours later, they slowed me down and locked me out again, awaiting a $5 payment to restore complete delivery of all campaigns.
which, again, i know is an error because after the second notice, i paused *all* my ads. so how could my CTR be going down if i wasn't running any ads?
look, i'm a big fan of google adwords; they've really started to work well for me, they convert into sales and i'm sure i'll continue to use them. but in the best of times, their customer service is spotty.
and right now, they have a major public relations nightmare on their hands and they really need to get into damage control very quickly.