I set a limit $10 per day to try, but Google ignores my limit and carry on

what should I do

 

By how much - if it's a 'a bit' , - no more than 20% - then it averages out over a month.
https://adwords.google.com/support/...12&query=daily+budget&topic=&type=f& onclick=

If it's considerably more than 'a bit' then it's a bug (does anybody else think adwords is being buggy lately), get on to them about it.

 

You may also want to check your billing to see if you are receiving overdelivery rebates. Most accounts that run over do receive them.

 

Exactly, how much over are they going?

 

I paused a company when was 11.34

 

Are you running multiple clients under one account?

You are going to run into issues with this, every client needs to have their own account.

 

Sometimes they do run a little bit over. It will even out over the entire month.

 

How much does each click cost?

If your limit is $10 and it costs $.99-$2.99 a link, eventually you're going to get to $9.99 and be under the limit. then get that one last $2.99 click. xD

 

if the previous days' budget has not been spent google may add the nonspent budget to your future daily budget. however in medium you must pay what you have set as daily budget.

 

How much are you going over the limit? Google will usually average this over the month and issue credits for going over the limit. Check out your billing statements.