Got my heads back from porting...is this ok???

I just got my heads back from being ported today. I won't say who did it until I get to talk to them first. They are magnum heads, fully ported. They broke through where the valve cover bolt holes are. In one port, the hole is about 3/16" X 1/8", and the rest are pinholes with paper thin metal left. I don't know much about porting heads. I know definitely do not break into any of the water journals, which they did not. Is this normal, or should I be getting in someones a$$ over it? I'll try to get pics up later. Thanks, Dave