If you bought GEM tokens with ECS and waited for at least two business days, and the tokens did not arrive, please contact the Habsburg Fine Arts support here: https://www.habsburgfinearts.com/faq. 

In case you purchased GEM token with a credit/debit card, or any other payment method than ECS, then the GEM token was not issued on the eCredits Blockchain. Therefore, it will not be visible in eCredits products, including the eCredits Wallet App.