Since I have experience with P1 network problems for more than 2 weeks time, P1 offer me a one month rebate for October. I shouldn't trust them anymore, because I have bad experience with them. They always says they are going to give you some rebates to cover your lost for the days that you are not able to access to the Internet, but they never keep their promise. (read here)
This time they did gave me some rebate, is 3.30.
My P1 rebate is 3.30