SBI securities NISA deposit

This is a very superficial question, but hopefully someone with experience might have the answer.

I recently opening an NISA account with SBI Securities and would like to max out the growth allowance for this year. The money is in a SBI Shinsei account, but when I tried to link it for a real-time deposit (リアルタイム入金), it threw an name mismatch error – my SBI Securities account name appears to have included the first two kana of my middle name. I will call in to get this corrected, but I do not want to risk my account being frozen for review so close to the year end.

I also have an SMBC account that uses the instant deposit (即時入金) system which doesn't appear to require linking. Does anyone with experience know if I'll run into same issue? The SMBC option immediately asks for a deposit amount without going through the name-matching process, so I’m assuming it should work, but I'd like to know before transferring 2.4m between accounts.

Edit: Alternatively, will there be any issue transferring 2.4m yen back and forth between Shinsei and SMBC in a few days? Other than the 220 yen transfer fee?

by SanSanSankyuTaiyosan