VSEC's official policy is if they make a mistake, it is TOTALLY NORMAL, and you are going to eat the bill because that's the cost of doing business. Their ultrasound technician incorrectly diagnosed my cat with a blockage, the vets told me my cat needed emergency $3,500 open-abdominal surgery, and when it turned out my cat was 100% fine, nothing was wrong, and they made a mistake they wouldn't even give me an apology--much less a refund or partial refund.
Let me repeat that: they will misdiagnose your pet, pressure you into immediate, $3,500, traumatic surgery, find out they were wrong, and tell you "Mistakes happen, cost of doing business".
Perhaps they're good if they get it right. All I can say is if they get it wrong you're out of luck.