I was about to reach the previous limit of 20k, and I found myself with the unpleasant surprise of the 40k limit.

The only good and reliable PTC site is ADBTC. Most of the rest is a waste of time to my knowledge.

It is preferable to use the high paying fast faucets, and plays Faucethub's Rambo Dice. In 30' or less, you can get the same amount of coins as in several months watching boring Ads. If you do not have luck, you only lose 30 'of your life. Think about it.