TOOO Fall

I have a friend who registers as "offline," even when she's standing right in front of me! So, I delete her as a friend, then ask for friendship, and she appears as online, but it causes my other friends - who are standing right in front of me - to register as "offline!" Can you help?

I'm trying to buy Linden Dollars, but I keep getting a pop-up that tells me that I've exceeded my limit of US$2000. The only problem is, I haven't spent US$2000 this past month! (For one thing, my credit card only goes up to US$900.) Unless this problem is resolved soon, I can't pay the rent on my apartment in SL.