Yesterday I betting football Ajax vs Tottenham. 0.01btc and Ajax win.
When do I get the btc winnings?

Have you received your bitcoin winnings which you told you have on that day? I think you have already received your winning without any hassle.
It has been 1 week and I still have not received btc the winnings yet.

I will never betting on freebitco.in anymore, too disappointed by the delay

I can feel your frustration but given the reputation of freebitco.in they will pay your pending winning btc., Just give them time to fix your issues i guess this is just some internal problem that needs personal attention by the main dev of freebitco.in.