why is there a limit on my linden purchase?

[TatiannaRo]

why is it limiting my linden purchase?

[Rolig Loon]

That's hard for anyone here to say, since we can't look into your account. When was the first time that you bought L$ on the LindeX?  I can see that you have been in SL for a couple of years, but if you have only recently bought L$ for the first time, you are subject to the same newbie limits that any new trader has. Your trading limits will start to increase fairly quickly, as the table shows.  You can request a review of your limits, but the review takes long enough that you might as well just wait.