Etsy support continue to send me messages about verify my account... I do but I cannot answer...it say me error on sending please retry...
Those are scams.
You cannot reply because etsy has already removed the user.
Solved: How to Spot a Scam - No a Buyer Doesn't Need Your ... - Welcome to the Etsy Community
Protect Your Account From Scammers - Welcome to the Etsy Community
New “From Etsy” section in Messages - Welcome to the Etsy Community
Remember, Etsy already have your email and financial information, so you don't need to enter it again anywhere
If you have a genuine sale, it will appear on your Dashboard
@apcreazioni: It sounds like you are the target of SCAM - you might want to read the excellent post by @bradgoodell in https://community.etsy.com/t5/Managing-Your-Shop/How-to-Spot-a-Scam-No-a-Buyer-Doesn-t-Need-Your-Ema... and https://community.etsy.com/t5/Technical-Issues/Why-do-they-ask-me-for-my-e-mail-in-order-to-make-a-p...
There is also official information from Etsy at https://help.etsy.com/hc/en-us/articles/360000343128-How-to-Handle-Spam-and-Suspicious-Messages?segm...
Real messages from Etsy are now going into their own section on your messages page https://community.etsy.com/t5/Announcements/New-From-Etsy-section-in-Messages/m-p/143722497#M1899
If you have not already done so, you may want to read https://help.etsy.com/hc/en-us/articles/115015710308-What-to-Do-After-You-Sell-an-Item?segment=selli... for an overview how orders work for sellers.