VIABTC is an organised scam

Dear All,
Beware of VIABTC. It seems to be an organised scam, fraud, crime etc.!
At some times they just simly don't pay the PPS reward and according to their explanation they think their clients are stupid.
Normally, a PPS payout means that the pool pays you for every share, regardless of pool luck and regardless of mining time. But at VIABTC, sometimes not. Look at this conversation:

Me:
"Dear Support

I mined on your BTC pool in PPS+ mode with my subaccount *** (Workers *** and *** ) around 06/06/2018 20:20 - 20.45 UTC, with an average hashrate of 22PH/s, (peak hashrate around 28,6PH/s).
However, I didn't receive the PPS+ reward. Please fix it.
Proof attached (hashrate screen)

Thanks"

VIABTC answer:
"Thanks for contacting ViaBTC support.
The profit of PPS+ mode consists of two parts: PPS profit and PPLNS profit.
Due to the PPS profit is allocated every 1 hours, but you've mined on BTC pool only 20 minutes. So there was no PPS profit.
Please check your PPLNS profit in your wallet.

Kind regards"

So I was not rewarded because I didn't mined for an hour, only for 20 minutes.
It is not first time, I have proof that it happened minimum two times, but possibly more times also.

I'm suspicious (but I don't have exact proof) that they also stole a Bitcoin cash solo mining reward (12,5 BCHs) when I was mining on their pool in solo mode.
My ASIC showed that it has been found a block. I know that the statistics of the ASICs are not reliable but there is a little chance that at same time the pool also finds a block.
And of course, they explained, that somebody else was the block founder.

The other scam, which happened some months ago is that they only paid around half of the PPS reward for BCH mining.

So my advice is to avoid this pool. Avoid it far away.