Hi, I started my first Adwords campaign today and I'm seeing something strange ... I have set the max CPC per keyword at 0.1€ (it's a non-competitive market ) but one of my keywords has had 3 CT's for 0.11€ It's not much ( 0.01€ ) but why set a limit if they're not going to hold to it ?
I have had cases where a test was being run, the maximum was £.50 & I was charged £3.57 for one click!
I have had cases like this, but anything over and beyond what I had set as either my maximum CPC or CPD always seemed to be credited to my account at invoice time. I have not seen this published anywhere though so contacting Google is probably a good idea for clarification.
I've been charged more than my daily limit a few times, but never been charged more than my max CPC. For one particular campaign, my daily limit was $60 and I got charged $65 a few times. That was more than a year ago when my campaign was still just an infant and it hasn't happened again since then, so I never complained to Google about it.