OP, Stakemeharder, if you deemed it necessary to raise a flag against Rollbit, you can go to their trust page, next to the negative feedback there is a button to add a flag. Or, way much simpler, just click this link.

Please note that me informing you this does not translate as I'll automatically support --or oppose-- the flag, I simply writing this as bitcoingirl asked --someone-- to explain it to you and it could be an option you'd like to take before escalating to their licensor. Bear in mind that, once raised, a flag can not be withdrawn, it can only be deactivated by having no support or more opposition than support.