I don't think it is quite as simple as you are making out in your previous posting.
Betfair bring clients under the name of Tradefair but they are still Betfair's clients, and Betfair does appear to be a totally separate company from LCG or CS. I am a customer of Tradefair (and therefore Betfair), and my contract/agreement is with them and nothing to do with LCG or CS, even if the people who answer the phone, reply to the emails, and (if necessary) accept/deny/delay my trades, are the same does not affect the fact that the real owners of the business behind Tradefair are not LCG/CS but Betfair (or whoever owns them which is not LCG as far as I can see).
The fact that Intertrader use that same form of words
is neither here nor there. The alternative term (which you will see in various places on CS or LCG websites) is "white label partner" which I think is more helpful. It suggests that two independent businesses are collaborating to their mutual benefit, and in this case, are using a common underlying platform (although what the customer sees is different in each case).
Note that the special offer that Intertrader offers, is different to what Tradefair offers.
I haven't done so, but I will bet that if you dig into the
corporate background of Intertrader, it is not LCG or CG but some other company at some other address.
I think the situation is analogous to (but not identical to) a franchise. e.g. Hartwells run a Ford dealership in many places, but that does not make them part of Ford - they may have a special relationship with Ford and use their logo all over the place, but they are still a completely separate business.
In other locations or areas, it might be another company who has the Ford dealership. The customer will just care that he is dealing with a Ford dealership and not care much who is behind the business. The "interface" will be much the same, even if not totally identical.
Put it another way: If Betfair suddenly went bust tomorrow, while the name Tradefair might disappear, LCG/CS wouldn't, not unless they had other serious problems. What would probably happen would be that LCG would take over the Tradefair business (as opposed to the trading name) as a wholly owned subsidiary, just like they took over Prospreads.
Well Simon is probably chuckling away at this, enjoying his "revenge" since we are now chasing our tails trying to work out the corporate relationships of the LCG "Trading names" or whatever, instead of giving Capital Spreads a pasting.