Well, now you can add to the list
for Bayern, only half the blocks are available - 339, 340, 341, 342, 343, 344, 345, 346, 347 (9 total) are the desginated away/visitor blocks. Yet only 339, 345, 346, 347 are available to select from. Sorry but i don't buy into the all the rest are sold out.
Plus, you cannot select a seat in the available blocks.