Stripe account on Squarespace, but can I use stripe payment links to send some purchases to another Stripe account?

Hi

I have a site with membership subscriptions set up, all Subs done through Stripe. 

I want to add Stripe Payment links to send some product/event purchases on site to a Separate Stripe account to deposit to a different bank account (Membership subs go to company account, product/event purchases need to deposit to person delivering the product/event)

All seemed to go well adding payment links but the Separate Stripe account throws up errors and won't process.
But visit the link outside SQSP and it works fine.

Does SQSP not allow this (even though it's an external payment link)? 
And if not, is there any way to set payments up to go to more than one bank account?

Many thanks

Dave