Well, back to 192.com, and the name you gave returns the full name of "Orange Personal Communications Services Ltd", which is at the same location as the Orange mobile phone provider. Have you ever had an Orange contract, or a mobile contract underwritten/provided by Orange?
My suggestion would be to ring the Orange switchboard (their number is 0800 079 5000 according to the database) and see if you can get hold of someone to ask about it. If you can't get through that way, try their switchboard on 0113 222 9100.
Let us know how you get on anyway
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