Passing on stripe processing fees to customers

Hi,

I've been trying to figure out in Stripe how to pass on Stripe processing fees to cutomers, but can't seem to work it out as I don't have the "payment Services" option in Stripe. Is it possible that Squarespace has disabled this?
Before using Squarespace, I did manange to pass on these fees to my customers?

 

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How can I pass Stripe processing fees on to customers (known as "surcharging" in Xero)?

If you have chosen to use Stripe as a payment service, you can automatically add a processing fee to the payment total when your customer pays by credit card. You can do this by going to Settings > Payment Services and selecting the Charge my customer a processing fee option."

I increase my priced by the percentage that Stripe charges for each sale.  4% should cover it. Also increase the mark up on shipping charges if you have items your selling. 

Is it possible to add this as a product and have it appear automatically in every checkout? Or alongside each product? 

I have tried adding a product within additional info to my main product but this doesn't get added to the checkout as I was hoping. 

Anyone ideas how I can make this work? 

in terms of the customer journey I actually display the products through an events calendar so do want a way this can work with this flow... 

Product > https://sunflower-eagle-a3h3.squarespace.com/open-courses/mental-health-first-aid-champions-1-day-course-7th-april-2022-900am

Event>  https://sunflower-eagle-a3h3.squarespace.com/online-events/o0oxsupoddg1u0ihrj44mbcn4shj6h

Hi Milly, Did you discover if there is a way to add this fee as a product that would appear with every transaction? Thanks, Melissa