Ranked Bug

Hi. I'm Silver II and I was in promo for Silver I, w/ 1w/1l, and I won the third game. After this, a pop-up said me that i was qualified for a serie, and 1 win was given to me (nonsense, I was supposed to be qualified Silver I 0LP) but no, when I checked out my profile, I was Silver II 98 LP..

That's clearly tilting, and i don't even know where this issue comes from. Thanks, Heykros.