Merchant: Duke Stephens | CEIDG Registered Sole Trader, Warsaw, Poland
Duke Stephens is a certified Polish individual entrepreneur (Jednoosobowa działalność gospodarcza) registered with CEIDG in Warsaw, Poland. We specialize in the testing, cosmetic grading, precision refurbishment, and cross-border distribution of pre-owned high-end smartphones across Europe.
Our workshop facility operates cleanroom diagnostics workstations, optical grading microscopes, and automated battery diagnostic analyzers, adhering to strict circular economy principles and European WEEE standards.
Every mobile device sourced from enterprise trade-in programs undergoes our proprietary 60-point PhoneCheck diagnostic protocol. We verify genuine OEM components, ensure battery capacity retention (≥85%+), and perform military-grade cryptographic data erasure via Blancco.
Financial settlements and customer transactions are cleared through our commercial merchant banking facilities with mBank S.A. (IBAN: PL64 1140 1010 0000 5402 8829 6102), supporting multi-currency SEPA EUR and PLN operations.