Strange Problem With Adwords - Can Anyone Help?

I set up an adwords account for a client that is 2 weeks old now.
There was about 800 keywords targeted and are are related to a small enough niche market and the campaign is targeted to only one country. There is not many competitors in the market. Possibly 15 maximum. The account was divided into the right amount of campaigns and relevant adgroups. And the Ads were all keyword related. So everything was optimised as it should be. I've worked on many campaigns and have my GAP cert so to put it bluntly I knew what I was doing.

For the first week each of the campaigns I was getting about 500 impressions on a daily basis for all the campaigns campaign combined. The CTR was averaging 12%. And the the CPC was between 40 and 60 cent for all my keywords. My positions were all between 1 and 4. And the Quality scores on most of the keywords were great.
So all in all things were running very well.

All of a sudden my impression dropped to 80 one day. Then the next day they dropped to 15. I investigated each of the campaigns and there was no apparent reason. Quality scores were good. I tried upping the CPC on each of the campaigns by 20 cent per day. But the impressions kept on dropping. Currently the the CPC per campaign is $2, but the impressions are at zero.

I've looked into all the campaign settings. The max daily budget is set very high. The the campaigns are on accelerated. Google and search network are turned on and all campaigns are active.

I've been onto a rep in Google who looked at the account and said he couldn't figure it out either.

So I'm hoping someone out there might have an idea of what's going on?

Any help greatly appreciated.

Use the Ad Diagnostic tool to see if your ads are "supposed to" show up for particular keyword searches. If not, it
tells you why your ad doesn't show up.