Local crypto startup Keplerk is said to have signed a deal with a cash register software provider to facilitate the scheme. Keplerk will allow customers to convert their vouchers into bitcoin and store it in wallets on its platform.
How does it work, you buy a coupon worth 250 euros, plus the extra 17.5 euros, then you have to go online and redeem the voucher in your Keplerk (nice French name) account and from there transfer the bitcoins, if you wish, in your wallet?
If so, does it matter when you redeem the voucher? You might get 0.05 or 0.03 BTC depending on the market fluctuation and its like you're already trading.