For sure didn't exceeded limit... This is what I get on http://blockchain.info/api/api_receive while testing. Now my host has changed something (don't know what yet, I guess only enabled it from logs) and I am not  getting that error anymore.

..but on "Fire Test Callback" I do get this response: "Error Sending Notification". Check Callback Response Log: Incorrect Receiving Address (the one in their callback URL is same as in my files).

The thing is I am moving my website to another server and my code worked on previous server so I am not sure where is the problem. Money is being forwarded when paying on website but I can't debug why callback doesn't work..