If I follow what you're saying, you gave the info to the designer but they haven't followed up with you yet to get it inspected? I had that issue when I converted to gas; the designer (I forget which engineering company was contracted at the time to spec/etc but the designer was not a BGE employee) was incommunicative so I ended up calling BGE directly to explain the situation and asked for their help. The designer's manager called me within a couple of days to apologize and we got the inspection scheduled. So, you may have to go over the designer's head. In my case it was BGE that was actually really helpful in getting it moved along. Not sure where your bottleneck is, but hope it gets straightened out soon.