Bank Account switch but leave joint account

UsOrThem

I have a individual current and joint current account with the same bank. I want to do a bank switch for just my sole current account to HSBC for the bonus.
The T&C's state the old account needs to close to get the switch bonus along with the other factors. I'm concerned even though I'm switching a specified account they may consider the joint account as still having a current account with the old bank.

I want to ask if anyone has had the same situation and experienced any issues?

Vortigern

Firstly, the current account switch service will switch and close the specified account only -and not other accounts with the same bank.

Secondly it won't switch a joint account into a sole account.

vacheron

I had joint and single Santander accounts.

I switched the single account over to Halifax.

The single account disappeared and joint account remained.

Easy peasy.