I'm a freelancer working for USA clients and I'm using PayPal business about 4 years getting paid correctly. Now I start receiving emails saying "Your invoice to xxxx was not delivered" but few of those invoices have been delivered to the client and few not. I used to cc my email in every invoice. But this time I never receive any invoices that I sent to many clients. usually, I receive a copy of the invoice. Please someone help me fix this.
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