Oh you sure you didn't? Up to level 40 you would of gotten 5 blue armor parts which is Dreadnaught Set, weapon you get at level 50. However, in all honestly if battle power is what your after then a full Level 30 Purple Set from the first instance with max infuse will be best even though it is 1 stat short of dreadnaught.
reloaded but did not give any way :/ I am talking about ''level 40 on first day and receive 5 piece set'' lokked in my bag several times but there is only one set witch I bought for 36 gold
Going to assume it's the Level Gift Pack that your speaking of. Sometimes it can glitch and I had to reload in order to receive it / claim it. Which the level gift packs don't ever go away so, being level 40 on day one shouldn't effect what your going through. Best thing to do is reload see if you can claim. If not clear cache and cookies and retry. If it keeps happening then bug report it.