One week without solving the issue... clearly change your IT team... or bank partners !

Thanks god I can push my BTC to OKpay then to Payeer and it worked in supermarket (1st time I've tried to use this card...), but more fees...

I've also find a good site for BTC to EUR with credit card, I need to try it (I'll get the card next month, MasterCard "named"...) : http://www.coinsbank.com

I'm french so I can't spend my BTC directly, for that I need a credit card in which ADVcash was the most adapted to my situation (and 0.99€ fees of charging the card...) but with coinsbank the BTC account is directly linked with the card so it's better, and no load fees.