You haven't been conned. Amazon, for all its mightiness, simply cannot pay you in real time.
Whenever you hit a payment threshold for Amazon, there is a two-month "delay" (or lag time) in payment. For example, what I earned throughout January will show up in my bank account by the end of this month (March). At first, I was angry that Amazon couldn't pay me in real time--I needed the money! Now I've learned to be patient. It was extremely nice to receive the money from my holiday sales in December a couple weeks ago ... so I could pay off the holidays.
I have reached the payment threshold in the UK four times and France once in the last two years. Like you, I don't hold my breath, but it is always a nice surprise to see that money tacked on to my US payments.
Amazon DOES pay you ... just not fast enough.
Consider royalties paid to a print writer. I get royalty checks twice a year. The June check covers sales from July-December of the PREVIOUS year. The December check covers sales from January-June. In other words, in the print world, there is a six-MONTH delay!
Though people ask, I can't honestly say how many books I've sold at any given time. I've often wondered how current bestseller lists are compiled because of this. I have a strong feeling that they're based on book ORDERS, not actual sales.
My advice to anyone working with Amazon via Kindle titles: be patient. The wheel of progress (and payment) moves slowly.