There is no KYC in the cold wallet.
KYC is needed if we take more than ~1000 euros (or equivalent) from you for storage. This is only possible if you use Mitilena Pay and accept cryptocurrency payments on the website, which are processed by our system and accumulated in your hot wallet (for convenience). This is not the case with 99.99% of users. If you just download the wallet (or buy the advanced version) and accept/send bitcoins there, then KYC is not required.