Refund on taxes for a cancelled award flight finally came 10 months later.

Last March LH cancelled my BKK-FRA-MIA flight. Miles were credited back within a day after I called in. Was told refund for taxes might take 3 months. 3 months and 2 weeks later, while paying fees/taxes for another flight award, I mentioned I never received the refund. The rep looked it up and said he needed to input the refund request again and that I needed to wait another 3 months. I wrote off the $66 as a cost of doing business with Lifemiles. Then last week I received an email that a credit was issued and 2 days ago the credit appeared on my CC. What a surprise.