International Financial Dealings

As is well known, My Boy is in Venezuela for a year, studying at the Uni (one of them, I dont know which).
Unfortunately, he forgot to tell his bank, which snatched his card in Caracas 6 months ago. By subterfuge and lying, I got him a new one, which I posted to him but of course it never arrived. (My experience of the Venezuelan postal system is that about 33% arrive, the rest are re-directed to a huge hole in the middle of the rainforest).
By further subterfuge and lying (they were beginning to get suspicious by now, especially when I accidentally substituted his sister's birth date for his, *scouse accent: "Is that Jxxxxxx's father?". "No!")I got him a second card but this time retained it and all access codes to his account, telephone or internet or otherwise. Which is lucky because the official exchange rate is appalling (you get an 8 times better rate for US dollars cash than you get from a cash machine), so if he cant use his card, he isnt pouring money down the drain (through no fault of his own).
He has been living by accumulating debt and by working 14 hours a day (teaching english, working at some grim US-sponsored so-called pro-democracy office, and going to uni in the evening).
So now when he needs money, I transfer money from his account to mine (because the bank isn't keen on doing international transfers online or on the phone), then wander down the bank and transfer money from my account to whichever account he owes money to, whether in Spain or the USA. It seems to work.
I am going to see him after Easter, and will be taking some cash.
Once in Venezuela, we are spending some time on the Caribbean coast, time in Caracas, maybe the rainforest and Orinoco River and then a week in Peru on the Inca trail to Machu Picchu. A colleague at work has done the Inca trail (but didnt carry her own stuff: she got Attitude Sickness, we are carrying our own and so may suffer from the other one). I may post some photos.