Medicare part B double billing.
My wife and I started Medicare Plan B on January 1, 2024. we received a bill for four months of premiums, which we paid in full. My wife decided just after January 1, to start Social Security. We received an autopayment at the end of January. Here is the shocker. Even though we paid for FOUR months of PLAN B, Medicare deducted another payment for Plan B for January. In my book, that is double billing. I called the Medicare office and they said we had to wait 6 months before they will pay back the 4 months of potential overbilling. In private business, this would be unacceptable. We want plan B but we cannot afford to be double billed for it, and we certainly cannot wait 6 months for them to correct a problem that they created. I put it on a credit card. I am assuming that I could run a chargeback against it. How should I approach this, so I am not overbilled?