Eunice here from Shopify. Thanks for posting!
From your message, it looks like you're wanting to edit the way your store name and phone number appear on your customers’ bank statements when they pay using Shopify Payments. I'd love to help you with this. Please find my step-by-step instructions to do this below:
Step 1: From your Shopify admin go to Settings
Step 2: Then, go to Payments
Step 3: In the Shopify Payments section, go to Manage.
Step 4: Scroll down until you see the section for Customer billing statement. Replace Blartees with SolaLuna under the Customer statement descriptor.
Step 5: Save new changes.
I hope this helps. Let me know if you have any questions. Also, if you need to contact Shopify Support in the future, they're available 24/7 via chat: here.