Are there any withdrawal fees ?
I have received 0.011 BTC that's around $ 98
It depends on what source for Bitcoin you are looking at. For example, on FxGlory the BTC price is $8678 but on CoinMarketCap, the price is $8750. On FxChoice the price is $8700. There are different markets for Bitcoin and Bitcoin can be very volatile too.
No, there is no withdrawal fee, but there is a Bitcoin network fee and also there is a time delay from when the transaction is sent to the time it is received in your wallet too.