sesom

Hi, after watching sumo for ~20 years and after missing bashos just by some days while being in Japan, I will finally be in Japan during a basho in March 2015! Unfortunately I'll be in Kyūshū during Haru basho and will arrive in Osaka on the final day of the tournament (March 22nd). So I will have to buy my ticket in advance via Internet and I found several options on the net. According to sumo-ticket.jp tickets are sold from February 1st on and a chair seat "SS" will cost 9800 yen + 1000 yen service fee. buysumotickets.com takes 10300 + 1200 yen for the same ticket and they would even send me the ticket to Germany for the hefty fee of 1600 yen. I asume I could also buy a ticket while I am in Japan (I'll arrive of March 15th) at 7/11, Lawson or FamilyMart, but I think chances to get a ticket for the final day will be minimal. I am tending to buy my ticket at sumo-ticket.jp with delivery to a combini close to my hotel in Nagasaki but I am not sure whether this is the best option. How would you buy a ticket for the final day of a basho? Any advices/experiences? Tnx!

3,55 € would be OK, but the apps says 3,55 €/month and this is quite hefty!