Transfer and back (for a month), from Plat to Bronze

Sooo, last month, I went to the US, so I did a transfer EUW --> NA

Then I transferred back to EUW, and noticed I had to do placement again.

....... I was Plat when I transferred (ok, gold 1 98 LP, but MMR was Plat), now after my 1st placement game I have been put Bronze 2 to start with.

https://euw.op.gg/summoner/userName=ir+sun

I guess on some site you can see that I was matched with Plats. Now I'm Bronze.

It's a bit annoying because I can't duo with my Plat or even Gold friends, since I am Bronze. I guess I'll have to climb, playing about 100 games, before I can duo again.

All this because of a 1 month transfer and back.

THANK YOU?