are they legit? i havent received any email 
Yup. I got paid back within about 5 minutes of replying to the email.
If you didn't get an email, write support through the site, they'll get back to you.
a) They told me 10-20 business days for wire transfer to refund my X2. When sending the money, it was 2 days. They just hijack the money.
b) With wire transfer the extra charges were excessive. Shipping at USD 300 while Bitmain charges USD 100 on the same route. The surchages for crypto were also > 5%.
c) Halong started SIA Mining with 500 B52 mid march and still have some 200 online (https://siamining.com/addresses/0104ceeee0c1335e6770b9e620baa87615e1780ea1a5e6bca2df2651c92313f9c3aa56865535). They had 1.8 TH for 10 days in march before delivering, accounting for > 10% of the network hashrate thus driving difficulty. This is not a test but collection a large pile of coins with miners paid by customers. Total > USD 300k in SIA just for this.
a) and b) are not professional, but c) is what many alledge Bitmain of doing: Mining while profitable at own account, shipping when difficulty is up.
You have receive your payement , because for me i never received payement , i waiting at the 10 may and after i contact halong, because its Myrig have make invoice for X2.
