Ok ... now everything works perfectly. Thanks you all for your help. Problem was solved but if you want continue with discussion about recommended fees. Maybe it helps to others who read it.
Yep you are right. I didn't know that having a lot of 'dust' in your wallet would bite you in the ass, after reading this thread I know. Also, one another reason to not use faucets.
In my wallet transaction fee is set to 0.00000000 and I never pay it, yet transactions are processed - fast and without problems, is that normally possible? Maybe my wallet is taking fee stealthily?
it depends on the priority of the transaction that you are sending. you have to include some transactions to be able to say for sure but they being confirmed fast might be because they have enough high priority that are included in the block, maybe due to small size.
i doubt that wallets include fees stealthy. and you can always check your address and see if your transactions have fees or not in an online block explorer like bci