[Stuart]

1) Your attitude on the phone towards to the lady who answered (who probably has little or nothing to do with your case) is disgusting. She was actually offering to help, but you insisted on having a go at her. Personally, I would have hung up if I were her.

2) The regulators may well refuse. OFCOM require that you give the company the chance to investigate the problem themselves (in fairness, I have no way of knowing if you have, but it doesn't sound like you have based on that call). The Premium Rate regulator probably won't get involved because VM aren't a premium rate phone company.

3) Do you know it's Virgin blocking the calls? Maybe your PNS provider has barred Virgin? They may well do if someone on a Virgin number has been abusing the system

4) As noted above, could someone be making these calls using a spoofed number?

My advice? Phone Virgin back. Ask to speak to the manager of the department. Don't be aggressive about it (whether intentionally or not, you did come across as a little aggressive in that call). Be calm.

When you speak to the manager, try and get them to investigate what has happened. I don't know how the department operates, but I would be surprised if they didn't keep a log of all numbers called (at the very least because there may be legal cases involving some of the numbers). Staff may not have access to (or even be aware of) this list. Hopefully, the manager will be able to obtain access to this list.

I would also ask your PNS provider if they are blocking Virgin numbers.