Soldato
if you use BACs it's really dead quick, well it is with the trading account and trading ISA. it's when you bank, like my main one doesn't support their instant bank transfer and that could take days.
I've asked for one of my ISAs to be transfered in, it's taken 4 days for my bank to receieve the message and move the cash and it's still not showing up in my T212 cash isa yet.
Mine does support the instant transfer in, it does it via TrueLayer and just connects straight in and instantly deposits. Withdrawal was still next day but if it's always that, then it's fine I think
I'm still waiting for my ISA from ZOPA to move across, I started that on 21/05, the site says it can take a couple of weeks to move over though, so just being patient.