Who are you working with? (i ask rhetorically). Frankly anyone who insists they sent you a wire but refuses to send confirmation receipt is likely a liar. I've heard this same story myself, as did my friend from various people, when you keep pushing for the receipt and they cant produce it, it's time to assume they're not paying you or are stalling to help out cash flow. If this is a new/half ass program, maybe they could look this bad/inept, but frankly i think you're being given a song and dance.
Frankly it's time to ask them to "Please kiss me and tell me you love me" cause i like to hear those words right before someone

s me!