Spread is too big for my liking

I can't believe how wide their spread becomes, especially on indices. Sure, the market's volatility may play some role in this case. But, even then, it is still way too big that it's supposed to be. It also seems difficult to place orders and stop near the current price. I am not sure if they have rules regarding this. But do enlight me if anyone knows about it. I tried to ask customer service these questions, but they aren't answering anything about it. It's seriously frustrating. They only send me codes but never do anything about it.