probably my last question. on ico platform it's written that balances are not updated automatically if investment is done in waves - are they updated manually sometime? made small investment as a test to check sometime ago but haven't seen any incent in numbers yet

Sold waves and then btc send to ico,this more simple,and my opinion.
this is not a good choise - you can get 5% bonus with waves investment and everything's fixed at a time of investment (see my previous questions). It's best to buy waves, increase price of waves, then do an investment. Just to be sure we are given a proper amount of incent I made a test investment to see how much tokens will be issued, but as long as this is not working automatically asked when it#s updated manually.
I agree with you - better invest with Waves so you can profit from the 5% bonus!
Regarding updating of balances: The Waves API is currently being activated step-by-step and we will soon be able to display the actual Incent balance. Our developer Peter is currently working on that with the Waves devs as first priority.
Btw, all transactions are recorded on the blockchain and therefore safe.

Thanks for this update. I intend to invest with Waves so it's good to know this is being worked on. Let us know when it's up and running. Thanks!