In mid Apr 12 I opened a new ISA with the Halifax completed their ISA transfer form to move an existing ISA I had with NW into this new Halifax account.
The transfer has not happened yet!
The NW sent me a statement showing the ISA account had been transferred and now has a zero balance.
The Halifax say the funds (cheque) have not been received.
I've made endless phone calls to the Halifax but am going round in circles.
Every so often I get a letter from the Halifax saying they are trying to obtain the funds from the NW. All sorts of excuses. Three weeks ago they asked the NW to stop the original cheque as they have not received it and to reissue a new cheque. Halifax assured me the NW ISA funds would be in my new account (via a reissued cheque from the NW) yesterday - they weren't.
Interspersed with the letters from the Halifax apologising for the delay I also get letters from them saying 'why don't you contact the NW yourself and ask where the funds are' letters. But that would be pointless as the NW Statement clearly shows the funds were transferred.
I've made 4 seprate complaints to the Halifax customer services and have threatened them with the FSO. Still no further forward.
Question is: Who do I report to the FSO, the Halifax or the Nat West?
My old ISA is now somewhere in the ether and I have no confidence in seeing the money again 
Would appreciate any advice - thank you.