Betvip put 100 mBTC (23 EUR) winning limit on my account. My last 4 bets was lost (3.9 BTC).  

I do not know what was my limit earlier because my highest  stake was only 1 BTC.

Sometimes betvip settle your bets lost despite of it is a winner bet.  (So always check your bet history. ) That happened to me twice so far.  
2nd time i can suppose they did it on purpose because i placed the same bet at another bookmaker too (that bookmaker used the same odds provider) and that bookmakers settled the bet as winner.  (I suppose that bookmakers get the results from their odds provider)