unable to authenticate me? what does that men?

[Lindal Kidd]

Do you have a payment method on file?  Is it current?

Also, LL recently changed the system they use to process credit cards.  You need to re-enter your credit card information.  See this blog post: https://community.secondlife.com/t5/Featured-News/Update-Your-Second-Life-Payment-Info-Today/ba-p/2966060

[Lindal Kidd]

Do you have a payment method on file?  Is it current?

Also, LL recently changed the system they use to process credit cards.  You need to re-enter your credit card information.  See this blog post: https://community.secondlife.com/t5/Featured-News/Update-Your-Second-Life-Payment-Info-Today/ba-p/2966060

[Rolig Loon]

It means that you have not registered a verified payment method.  You've left some step unfinished.  Review everything at https://community.secondlife.com/t5/English-Knowledge-Base/Billing/ta-p/700037#Section_.2, including the part about associating a payment method with a payment type. Check also the common billing problems outlined at https://community.secondlife.com/t5/English-Knowledge-Base/Billing/ta-p/700037#Section_.7 .  Finally, if you have a non-technical issue related to billing concerns, you can call the Linden Lab billing team at the following toll-free numbers at any time 24/7:

US/Canada: 800-294-1067
France: 0805-101-490
Germany: 0800-664-5510
Japan: 0066-33-132-830
Portugal: 800-814-450
Spain: 800-300-560
UK: 0800-048-4646
Brazil: 0800-762-1132

Long distance ( not free, but you can use Skype to save some cost ) : 703-286-6277
**Note: Support is offered only in English