Pending Invoice

[alex002]

I want to ask that, if my customer send me a pending invoice

Can he cancel it at anytime he want

Or there is some circumstances that he cant do so 

Because he asked me to send him the goods after he send me the so called "pending invoice"

And he also claimed that he cant cancel that invoice after it was sent out

Is this a scam?

[kernowlass]

@alex002 

If it was marked as an invoice then its probably a scam doing the rounds as its been sent by a buyer and altered to look as though he has paid you.
Signs its a scam are >>>

its an invoice BUT sellers send invoices not buyers
marked as paid
marked as gift
says payment won't show in your balance for eg 24 hours
says it can't be charged back....no because you haven't been paid.