I sent them a few emails to
info@sonm.com and
preico@sonm.com two weeks ago asking for refund but my request is still being ignored, this is very unprofessional...
what do you mean refund
if you invest in ico selling, buy sonm in ico selling, and then youre ready receice sonm coin, you can't refund, you only can trade in market
He means refund for the pre ico. There are some investor who wants to refund their investment on pre ico because the price of sonm per eth is not equivalent on the ico