The "Make offer" button has apparently been permanently removed at the beginning of this year.
Eight hours ago, I contacted CGT support about the discounts disappearing, but have not heard back from them. The loyalty points are gone as well. Right now, there are no sales discounts (with the exception of those put there by the sellers on certain products of their portfolio) nor can you use loyalty points on purchases. Under those conditions, I am not going to complete my purchase transaction as originally intended, unless and until this situation is resolved.