FWIW DM often gets the wrong end of the stick but she was pretty adamant about this one. Friends of hers emigrated to Zimbabwe nearly 50 years ago when they were mid-twenties & have lived there ever since but maintained British citizenship, passports etc. as a precaution. She tells me they kept UK bank accounts open & still claim their old age pension and also get a Winter Fuel Allowance paid in.
Doesn't sound right to me but she insists she's correct. Will I be needing some ketchup for my Humble Pie??? 