said by AVD:
should be a way to block it at the central office...
They're clearly able to block PPV orders when a customer exceeds a maximum amount of billed $$ -- that's how she became aware of the problem each time it came up.
She's apparently not willing to block PPV entirely until this is sorted out, which is regrettable, since Comcast obstinately persists in allowing porn to be ordered to her last dime. She's only going to contest these things, but if she loses, she'll wish she had 86'ed PPV and signed up with netflix.