Yeah, this happens alot, afraid you can only really do three things about it :-
1. Grin and bear it, it only really happens at lower levels anyways
2. Join an SG, posting on this board generally finds you a good one
3. Once your level 10 create your own SG, best way to stop them coming but very lonely
hope this helps, don't let it distract you too much
White Magik lvl50 Defender
Commander of the Shades of Darkness
Swift lvl50 Stalker
Board director of the League of Scoundrels
Our Forum
yeah Im lvl 11 so I might make one untill the mighty Rangers accept me in 
I get so many invites each time I play it kind of gets irritating. Anyone else feels the same? Sure I want to join a SG but not untill I get to know people and know its a well established mature group.
At least send e tell first, introduce yourself etc.
just my 2 cents