I contacted support today, i was told that there was confusion because of this 8-week mechanic. And according to them i will be able to buy UMBRA FORMA only on January 16th, when it will be exaclty 8 weeks from the last purchase made by me...apparently many are being affected by this extreme accuracy with the counting of the weeks. I recommend that you still open a ticket, until they (DEVS) comment on it in some post...make sure your problem is noticed by them on the support