I would like to try that, but now the purchase screen doesn't respond if I choose wallie or zeevex, only premium-calling and premium-sms.
ETA: So I gave in and went the SMS route, successfully completing 19 of my desired 24 500-Ducat purchases. And then the service stopped responding. Fortunately, the SMS service has a toll-free support number and I was able to reach someone, but he wasn't sure how much could be done before the holiday. So I have 9500 Ducats, but I'm not just going to buy the 50k Tribute for 7k Ducats, because it's not as good a value as 100k for 12k.