I have two interfaces, MPVI Pro that came with 8 credits that I bought a few years ago, and then I also bought (not upgraded) MPVI2 Pro more recently that came with 18 credits. On HPtuners internet account window I see these devices and credits but don't see what credits I have consumed. In VCM Editor application I see I have used 2+2+5 credits. What I cannot see between the web account and VCM Editor is what credits belong to what interface (device). I want to sell the MVPI interface but don't understand how many credits would go with that?