shit thats very strange indeed, im sure u didnt just give ur address out to anyone but even if someone managed to get ur add. y on earth would they send u free seeds ?? very strange indeed, id say ur rite tho pack em back up and write return to sender on the envelope, leave it down for a couple weeks, then if nothing happens grow grow grow!! maybe write a letter back to the company or person if u have there return address and enquire as to were they got ur addy???