Buying whl otc.
Sellers pls PM.
Why not buy on open exchange? There are 2 for WHL:
https://stocks.exchange/trade/WHL/BTC - low volume, but no issues with buying/selling, fast deposits/withdrawals too
https://mercatox.com/exchange/WHL/BTC - these guys make up the volume, so don't take that seriously

but otherwise OK exchange as well, never had a problem there