Cleverbridge RegClean Pro ,Purchased product have receipt every time go to use it asks for a serial number Company did not suppy one for me on the receipt., this was for RegClean Pro Cologne, Other

purchased and downloaded Reg.Pro
RegClean Pro
(1 Year Upgrade Protection From a company in Germany and here is a parital copy of my receipt every time I go and use it I have to register the product I used it once only because it asks for a serial number they did not supply....
Invoice Date: 1/15/2012
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Reference number:
(required for all inquiries)
29133261
Invoice number: AKD-73616096582
INVOICE INFORMATION
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# Product Name Delivery Unit Price Qty. Price
1 RegClean Pro
(1 Year Upgrade Protection)
electronic $29.95 1 $29.95
2 FREE Disk Speedup electronic