I really need some help! I'm really worried about my tree (which I think is Sageretia)
[url]https://photobucket.com/hegx442bonsai[/url]
The leaves are very thin, dry and crumbly. The tree has been this way since Christmas, when I received it as a gift.
At first I thought this is how the leaves should be, but after reading about the species I realise they should be thick, bright and glossy.
The soil is moist and it has a humidity tray. The air in England is always humid. The temperature varies between 16'C and 22'C at a guess.
The internet store it was purchased from said it looks like it has been kept too hot, but I know there's no chance of that.
I've been in denial, but know I know there must be a serious problem.
I don't know what to do!!

Any ideas?!
Thanks,
hegx