It's easy for me to say, that pixellation on live TV is indicative of a signal fault somewhere. Either in your box, your cabling or the street cabinet.
From the sounds of it, you've got an account-security problem thrown in for good measure. I'll level with you, that the complaints process isn't likely to rectify this situation and potentially could just add another 30days to your current predicament. That's not to say "don't do it", but please don't hold hope on your situation magically being resolved just because you've got a complaint open.
I've escalated your post to VM forum staff to see whether they can rectify this quicker/easier than you've managed thus far. They may find themselves stuck behind the same password/security issue that you currently have - but they may just be able to break the deadlock. Ordinarily you'd be waiting a couple of days for this, but with the "magic wand" I've waved, that timescale should be cut drastically. See what they come up with, and go from there.
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