Those B! banks!
BANKING-- despite all their assurances that you have set up all the correct procedures and accounts, there WILL be problems. Not in your host country, but 'back home'. These will take the form of excessive fees, limitations on the maximum allowed currency, changes in their regulations, both Governmental and internal bank rules, staff changes, lock-outs for internet transactions and many, many others.
Should you try snail mail it may take weeks of effort; I once took a certified bank check wih...