Horse power serial number not provided

hello
in the BFD licence manager it says my horse power expansion pack has no serial provided , it seems there is a double licence in my account , but it will not let me switch serial numbers . Also in my in music account it shows that i have 2 licences for horse power expansion , the original one I bought and this new one witch was registered a couple of months ago , not registered by me I might add , is there a way to delete the offending duplicate ?
cheers for your time !!