google tells me that bitgrail is a small exchange!
if you paid 0.0013BTC in fees then there is nothing you can do about it, you can complain to that exchange why they are taking that big a fee from you. or stop using it and use another exchange that takes a smaller fee for withdrawals. for example i heard that poloniex and bitstamp are taking 0.0001BTC fee!

Well  you should try to understand , more fees  = more quick your transaction get confirmations ,at the same time hurts so much because bitcoin price is up  , a fee valued in 5 $ could be 10$  in months , try sending a ticket to the support  .

did they really take that much fee from you?
because that would be the first exchange that does things like this!

usually what happens is that exchanges take a fixed amount of fee. for example as i said above poloniex takes 10K satoshi last time i heard. and then the exchanges pay any network fee that is needed, the user never even sees this unless they check the tx.
this means if you withdraw from exchange you still pay 10K but they pay 100K for network fee.

and that is not strange since the tx is big 668 bytes.

It is too much but there is nothing you can do about the fees on online wallets or exchange websites. I advice you to use Electrum wallet because it is easy to use and you can change fee amount.

Not yet use ELECTRUM wallet but heard about it and seen that a lot of people using this wallet. I have to use ELECTRUM wallet for store my bitcoin. But for receiving Bitcoin i can't control the fee I think.if i am wrong correct me?I only control sending fee what I know about electrum wallet.

I agree with you on that. This issue of transaction fees is getting out of hand. Now that the value of bitcoin reaches new all time highs means that transaction fees will also increase

Since the 8th of Aug 2017, someone has started to spam the network with tx's with low fees again... {jealous much?}

A lot of people cannot handle the success that Bitcoin had lately, so they started to spam the network again. The exchanges

will latch onto that again and charge higher fees than normal. {in some instances, this is not even necessary}

http://bitcointicker.co/networkstats/

I am not sure why this is happening but when I use blockchain.info wallet to send funds (they adjust the fees every time as per the network load), sometimes the fees almost equal to nothing and sometimes it becomes too high that makes me postpone transaction unless it is very urgent. This happens every time I try to make a transaction and the fee fluctuates in between extremely low to extremely high amounts. However, I have noticed much improvement after the fork in terms of transaction confirmation time.

We can't do about it because that is the result for getting higher demands and popularity of bitcoin, while the bitcoin is getting more of it then the supporters like miners is having a hard time to sustain the network so they need more amount of fees in order to be motivated and also to get more profits so the miners can bring more mining rigs to support the network.

Poloniex is the crappiest exchange you can possibly find though..
-Bad Customer support
-Full of horror stories
-Money disappearing
-etc

Regards,
Trump