Customer payment not going through/ unable to use messenger in app

[HandmadebyJSPCrochet]

Subject says it all 

[JustMeToo]

@HandmadebyJSPCrochet   It sounds like a scam to me.  They target new shops.

[TinLizziAntiques]

OP, unless your buyer  mistakenly entered the wrong credit card number, it's likely a scam. Look in your Payment Account and see if an order has been paid.

[HazelsSewingSupplies]

Sadly, subject does not say it all.

[ButterflyFeetDigital]

Scammers tend to target new shops.
Things to read:

https://community.etsy.com/t5/Announcements/Protect-Your-Account-From-Scammers/m-p/143158945#M1882

https://community.etsy.com/t5/Managing-Your-Shop/How-to-Spot-a-Scam-No-a-Buyer-Doesn-t-Need-Your-Ema...

https://community.etsy.com/t5/Announcements/New-From-Etsy-section-in-Messages/m-p/143722497#M1899

https://help.etsy.com/hc/en-us/articles/360000343128-How-to-Handle-Spam-and-Suspicious-Messages

If you receive an actual order, you will see it in your "Orders and Shipping" section and you will receive an email from Etsy notifying you that you have a sale, and there will be a notification in your dashboard as well.

[ModKenneth · Accepted solution]

Hello,

Etsy is actively engaged in preventing scammers from targeting our community members. If you receive a suspicious message, please proceed with caution. Etsy Support will never ask you to provide personal information via Etsy Messages, such as your email address or password. Any legitimate message from us will show in your "From Etsy" folder.

If you receive a suspicious message, here’s how to report it:

1. Sign in to Etsy.com and go to Your Account.
2. Go to Messages. 
3. Select the suspicious message from your inbox. 
4. Choose Report.

You’ll find examples of common scammer techniques and phishing messages here in our Help Center. Read our Account Security Checklist in the Seller Handbook for more steps you can take to protect your account.