I believe a competitor has purposely created this spike in impression just to push me down the list.
I've contacted google about the incident to see if they'll erase the impressions from my account so that my overall quality score isn't affected - but from what I've read, google is less than helpful in cases like this one.
I'm just wondering if anyone knows a way to stop impression spam... although I really doubt it.
My plan B would be to create a new adwords account and copy and paste everything over using adwords editor. This would hopefully allow me to start with a fresh quality score. What do you guys think?
They gave me a very generic response and suggested that it might have been a 'seasonal fluctuation'. Yeah right! 10 times the normal number of impressions and no clicks on a single day all on one exact keyphrase. Seems very unlikely for a term like "wedding photographer".
They also suggested I may just have been approved by a search partner in the google network. I'm not even freaking opted into the google search partner network.
Anyway, I've replied making it clear that it is impression spam, that nothing else could have caused it. Hopefully they'll actually pay more attention.
I've seen one or two instances of this over the past few months, but it generally has no visible impact on history or results/conversions etc
Thanks for the google trends suggestion, but unfortunately there wasn't enough search volume for it to display any data.