i backed for Bloodnamed as well. been playing for a long time, so i'll give what help i can.
Bloodnamed comes with 4 selections of lance/star packs. (it originally was going to be a pair of packs which you got duplicates of, which is probably where the confusion came from. but there was a stretch goal that turned it into 4 individual sepections)
from a normal battletech gameplay perspective, the ten mechs that come with the two sets you already have will match up well with the five in the Clan invasion box. (due to the differences in tech level, the clan mechs pack a lot more firepower into a single unit. which mostly gets offset by the inner sphere just having a lot more of their less advanced mechs.)
so the 4 packs you pick should probably be for ones that you find visually interesting, and no matter what you get you'll be able to use them for standard battletech games, since normally you won't be fielding large numbers of mechs. so what you get will just give you more options to chose from when picking what you will play.
now, are you planning to look into alpha strike in the future? it is a more simplified ruleset that plays a lot faster and allows for much larger forces to be on the table at a time (and usually is played on 3D terrain). if so, you might want to grab at least one more clan star, since a fairly typical clan force in alpha strike is two star's of mechs, what the setting calls a binary.
as far as the other rewards.. you'll be getting a fair number of random mech packs automatically as part of the bloodname level (which are individual blind box things, giving a single random clan mech each) as well as an extra one with each inner sphere lance you pick. note that this means that you can probably pick all inner sphere lances for you packs and still have plenty of variety of clan mechs to play with. but random means you won't know what you get till it arrives in the mail.
the Tshirt, dice, pin, patch, coin, and so on are the main reason i think a lot of people picked bloodname level. with those the backer kit will give a preview of what each faction's looks like. the list is rather long to go into in this post, and if you want a summary of what each are, just ask and we'll try to provide. but you could also just pick ones that you find visually interesting, and you could get each one with a different faction logo if you wanted. (personally i'm going all Clan Coyote.. but they've been my favorite faction for decades)
you also get packs of cards.. these are pilot cards, a new addition to the game. they are basically named pilots with some special rules you can take to spice up your games a little. you get two picks for standard ones, which i suggest you get both pack 1 and pack 2 for completeness, and then you also get a pick of a special pack that is either inner sphere or clan focused with legendary pilots. pick whichever you want there, they both will have some pretty good stuff.
well, without a bit more information of the issues you are having,
