I see lots of current accounts have switching bonuses - is there generally any limit to how soon after opening a new account you can switch and get these? More specifically: say I opened a current account like this FirstDirect one with a free £100 for using the Current Account Switch Service within 3 months, is there anything to stop me opening another account from another bank first (e.g. a basic current account with no credit checks), paying some money in then 'switching' within the 3 month period? I can't see anything against it in the T&C's, but I could have easily missed it.
Context: I'm a UK student on placement year looking to open an account for my housemates and I to pay our rent and bills from, in my name only. £100 would be a sweet deal for us but I don't really want to get in trouble for it. I already have a student current account that I want to keep separate so would not be interested in closing it. Assume I'll pass credit checks etc.