Thank you all for your replies.
It seems I have opened a SIPP with interactive Investor.
I have not transferred my pension in yet and I am still in the 30 day period.
i chose ii mainly for 2 reasons
1. The Low fee structure.
2. A comment dunstonh made in another thread about the underlying software Platform being modern and robust.
"III apparently use FNZ. FNZ has some of the best software on the market for platforms. However, it is highly configurable (so features/options can be enabled/disabled) and FNZ just controls the backend and trading. They do not code the frontend (how info is displayed)."
hope i have made the right decision
Would anyone disagree with ii being cheaper than Fidelity for a £160K SIPP in Drawdown that holds a mixed bag of about 10 - 15 Funds And ITs with about 4 trades a year after the initial set up and no money taken out of the fund for the next 5 years.
Rereading the last few replies they seem to favour Fidelity. Still 30 days to change my mind!
Thankyou once again for all your comments
Ian