Effective Date: February 28, 2026
Version 1.0
This Privacy Policy explains how we collect, use, process, and protect personal data in accordance with
Regulation (EU) 2016/679 (GDPR) and applicable Croatian data protection laws.
Who we are
Limestone Tube Amplifiers is a manufacturer of highnend vacuum tube audio equipment operated by
WiM Systems d.o.o., a company registered in the Republic of Croatia. We design, manufacture, and sell
audio amplifiers, vacuum tubes, and related products through our official websites and online store.
Company Name: WiM Systems d.o.o.
Brand: Limestone Tube Amplifiers
Address: Varaždinska 27, 42202 Trnovec Bartolovenki, Croatia
Website: https://limestone.hr
Online Store: https://store.limestone.hr
Email: store@limestone.hr
Phone: +385 99 196 6111
For the purposes of data protection legislation, WiM Systems d.o.o. acts as the Data Controller responsible for processing your personal data.
Data Controller
WiM Systems d.o.o. (Limestone Tube Amplifiers)
Varaždinska 27
42202 Trnovec Bartolovenki
Republic of Croatia
Email: store@limestone.hr
Categories of Personal Data Collected
Identification data (name, surname, billing and delivery address)
Communication data (customer support correspondence)
Contact data (email address, phone number)
Transaction data (order history, invoices, payment confirmations)
Technical data (IP address, browser type, device information)
Legal Basis for Processing
Performance of a contract (Article 6(1)(b) GDPR)
Compliance with legal obligations (tax and accounting laws)
Legitimate interests (fraud prevention, security, service improvement)
Consent (newsletter or marketing communications where applicable)
Purpose of Processing
Order processing and delivery
Customer communication and support
Accounting and tax compliance
Website security and fraud prevention
Improvement of website functionality and user experience
Who we share your data with
Personal data may be shared with:
IT service providers.
Payment processors
Courier and logistics providers
Accounting and legal advisors
How long we retain your data
Personal data is retained only as long as necessary to fulfill contractual and legal obligations.
Accounting records are retained in accordance with Croatian law (generally 11 years).
Marketing data is retained until consent is withdrawn.
What rights you have over your data
Right of access
Right to rectification
Right to erasure (right to be forgotten)
Right to restrict processing
Right to data portability
Right to object
Right to withdraw consent at any time
Right to lodge a complaint with the Croatian Data Protection Authority (AZOP)
Where your data is sent
Personal data is primarily processed within the European Union.
If transfers outside the EU occur, they will be protected by appropriate safeguards such as Standard Contractual Clauses.