ok, first, if you just claimed an accident (if it was your fault or not, it doesn't matter) then the insurance company PROBABLY ran an MVR on you to see if there were other acc/viol out there. let's say your insurance record was clean up until this accident, then you were probably getting a discount for being a 'good driver' along with a good base rate. now you no longer get the good driver discount, and you're probably being assessed a surcharge for the accident (doesn't matter what the $$$ amount is of the damage). so basically you get smacked twice
also, if you had a violation 3 years ago, that DOESN'T mean it's off your record. most insurance companies have some provision to the effect that it's not actually 3 years, it's more like 3 years and 30 or 60 days. it also depends when that other violation happened. if your new policy renewed today, and the accident happened 3 years ago (or 3 years and 30 days or whatever) as of tomorrow, then you'll likely be stuck paying for it until your NEW policy starts.
another thing to consider is that most insurance companies have multiple "lines" of insurance meaning that "easy to insure" drivers get a better base rate and more discount opportunities than "hard to insure" drivers. and each company can pretty make up its own rules about what qualifies as a good driver or not (at least here in illinois). so it is possible that just by having the one accident, you were then marked as a "hard to insure" driver.
that shouldn't have gotten it raised becuase it should have been done 3 years ago and not now
this isn't true entirely either- some companies go back as far as 5 years to determine the "line" that you go into.
and as far as what you told the insurance company about the accident, there wasn't much else to say really-they will look at the accident most likely as an at-fault accident because "theoretically" you could have avoided it by swerving a different direction <_< or taking the bus that day or some other bogus thing like that.
My car accident raised my insurence rate 2 years ago so I got liability. And I don't know if this accident will raise my insurence because it was an uninsured motorist. I know how you are feeling.
if it was an UNinsured motorist, then you MAY lose a discount or two but it will usually depend on who was deemed at-fault.
Sorry it's so long!