The information you provide to Etsy for transaction purposes is governed and stored by Etsy. As a seller on Etsy, I am bound to their policies. If you have questions relating to the way Etsy uses your information, please refer to the Etsy Privacy Policy here:
https://www.etsy.com/legal/privacy.

We only use customer information to fulfill orders. Your personal information (name and address) as provided to me by Etsy will only be used by me as needed to provide my services. I may use your information to fulfill your order, to settle disputes, or to provide customer support. I may collect, use, retain, and share your information if I have a good faith belief that it is reasonably necessary to:

(a) respond to legal process or to government requests (i.e. taxes)
(b) enforce my agreements, terms, and policies;
(c) prevent, investigate, and address fraud and other illegal activity, security, or technical issues; or
(d) protect the rights, property, and safety of my customers or others.

I have no access to your payment account details: Etsy Payments and PayPal process your financial information independently of me. Your transaction information will be stored on the Etsy system as long as I have my store on Etsy or until Etsy deletes it. I will not spam you or solicit you using the information provided to me.