Ok, so, I have this problem I stumbled upon. I hope you guys can help me out. I have a google adwords campaign running since a while, a smalll one which is costing me just 150?/month. Now, after running it for a good while, I didn't see a good ROI on it, and decided to boost it up a little bit, while keeping a close eye on the campaign (which I didn't do with the 150?/month one) So, what I did is I raised the daily spending limit from 5?/day to 20?/day , thinking that would help me a lot, because my ad would be visible much more time per day. Now, today I just checked my campaign. And apparently, the limit has already been reached at around noon! This kind of aroused my curiosity, and I went to check the keywords, and how many times they got clicked etc. Now, what I noticed is, a CTR of 15% - 20% on many of the same keywords that I know my competitor is aiming for in his ads. Total of clicks on my ad for today : 81 , so CPC was around 0,25 And not a single conversion happened! Which is not normal, since the conversion rate of the website (which offers an offline service) is quite high. So, I am thinking now that my competitor is clicking my ads (or hiring someone to do so). Is this possible? And, more importantly, what can I do about it? I decided to stop the campaign for the time being, because I have a feeling something fishy is going on. Anyone with the same experience here? Many thanks in advance!