Wrt TM website:; Anyone else had problems with using the shopping cart for items fm multiple (domestic) vendors, paying shipping for most expensive and combined for all the rest ( all supported and fine for the TM website allowing continuation to completion),  Complete the transaction with 'success' email - then one of the vendors comes back demanding addtl shipping $ as shipping iniitaliser  cost was not combined with another of their items?  The TM shopping cart allowed and flagged this as OK and the sale transaction was completed/successful and email notified as usual but the vendor balk...