"they were buying bonus points and then made them miles through Aegean credit cards"
1. The only points which can be converted to miles are the ones which are collected by using the Aegean Visa issued by Alpha Bank.
2. Each Aegean Visa is connected to the unique M+B account that belongs to the credit card holder.
3. You cannot collect miles from different Alpha Bak cards (VISA, Mastercard) and then transfer them to the Aegean Visa aiming that the same are converted into Aegean miles. This used to be the case in the past but it is no longer possible to do so for more than 3 to 4 years.