"We work on clients keeping their own money in their broker account and we send signals to and from it, we dont have access to deposit and withdraw so the clients money is always protected it seems everywhere we read no one has a definite answer could anyone on here be of any assistance?" - no, you don't need to be FCA regulated if you just provide signals as you're not dealing with the clients funds.
On the other hand, yes, forex brokers should be regulated. See regulated forex broker list here.