My name is Lilith, I'm on the Social Care team at Shopify.
This sounds like something we can help within our Support team. If you've selected a plan, have design time available on your account and haven't altered the code on the theme, we can take care of this for you for free as part of our Shopify Design Policy.
I've sent over an email to you to discuss the details further if you'd still like some assistance on this.
I'm happy to answer any questions you think of as you work on your business.