It seems there is finally a way to use AB miles
Book accommodation on the promotion page
https://www.rocketmiles.com/topbonus...ource=topbonus.
Enter your topbonus number during the payment process.
First and last name when booking must match your topbonus profile.
5,000 miles will automatically be deducted from your specified topbonus account. The deduction of the miles can take up to 3 working days.
Only if you have enough topbonus award miles and they can also be deducted from your mileage account, you are entitled to a cashback.
You will receive € 25 cashback once you have completed your stay. This can take up to a business day.
If canceled outside of the cancellation period, no miles will be refunded
Failure to travel will result in no miles
Via:
https://www.facebook.com/groups/8587...4091757337201/
Anybody actually tried it? 5 EUR for 1000 miles, at least something...