I had 2 Virtual Calls; both were panel interviews (3-4 members from Surefox). They were timely with scheduling both calls within 1 week of each other. They mostly asked behavioral and situational questions. They were medium grade difficulty, but good thought process. Everyone was friendly and amicable. I was extended an offer, but they had no room to negotiate the salary or start date. After I submitted counteroffers, but rescinded my offer. I found this a bit strange, but overall, that is their business decision to make.