ADSL till month's end

[thedevv]

Is there an ISP where I can get an ADSL account only till the end of the month? I have everything (line, router), I just need the adsl data.

I tried Afrihost, OpenWeb and Axxess and they want a minimum of 1 month notice. Afrihost allows you to cancel before the 15th though, but I've missed that deadline.

Any other ISPs that would let me cancel on same day as registering?