AVG Sales Number not being recognized

Andrew, Did you follow this AVG article (https://support.avg.com/SupportArticleView?l=en&urlName=Registering-Products-Purchased-via-Retail-Store-or-Reseller)?.
AVG Guru

Hi! I purchased AVG AntiVirus for 3 PCs at Best Buy today and AVG will not accept the Sales Number on the card that came with the software box from Best Buy. Any help since I have purchased this anti-virus that AVG does not recognize the Sales Number for. Thanks in advance.

Andrew, Did you follow this AVG article (https://support.avg.com/SupportArticleView?l=en&urlName=Registering-Products-Purchased-via-Retail-Store-or-Reseller)?.
AVG Guru