Drop back to promos ?

I played my flex promos 2 days ago , and i was put to b 3. After playing 2 days i was at 79 Lp B1. NoW this morning i woke up , played a game and suddenly i get the message ''you will start you climb at bronze 3'' and here i am Again at b 3 with 0 LP , WHAT XD [zombie-brand-mindblown]