a question.

my sister didnt pay p1 for about 8 months.. last time pay at august 2010.

she didnt inform bcause she thought they will auto-cut the line and the bills if havent pay as previously p1 will cut off if u delay payment for more than 1 months.. she's been using her friend streamyx.. her friend left the house.. now she wants to continue but the bills is about rm900++
btw in august the contract already ended.

why is this happening? shudnt they just cut off the bills and the internet if its not in use or unpaid for 1months?