# Mercuryo #### KYC 1. what are required columns for sign up process? ![](https://i.imgur.com/d9GmQzs.png) from https://github.com/mercuryoio/api-migration-docs/blob/master/Widget_API_Mercuryo_v1.6.md/#932-silent-signup 2. does photo required? ![](https://i.imgur.com/GmwKeU3.png) from https://github.com/mercuryoio/api-migration-docs/blob/master/Widget_API_Mercuryo_v1.6.md/#932-silent-signup 3. what is accept column? true/false [acceptance definition](https://github.com/mercuryoio/api-migration-docs/blob/master/Widget_API_Mercuryo_v1.6.md/#92-acceptance) 4. from https://help.mercuryo.io/en/articles/4519473-mercuryo-widget-faq describes ``` Important note: Purchases up to €900 in total do not require proof of identity. Does not apply to US, Russian, Belarusian citizens ``` does the above mean that no need to provide KYC for trx under 900 eur done by non US, Russian, Belarusian citizens ? #### refund mechanism 1. refund mechanism from https://help.mercuryo.io/en/articles/4519473-mercuryo-widget-faq ``` Is it possible to receive a refund? Due to the irreversible nature of cryptocurrency transactions, we do not offer refunds. ``` and from https://github.com/mercuryoio/api-migration-docs/blob/master/Widget_API_Mercuryo_v1.6.md/#23-function-onselltransferenabled ``` When the User wants to sell crypto he needs to choose what to do if the crypto rate will change more than 5% during the selling. There are two options payout refund ``` are the above descriptions mean the refundment mechanism?