After 12 years of buying on-line ISA's through Fidelity they have decided that they don't know who I am, despite having my NI number, bank account details (for dividend payments), address, telephone number, and details of telephone calls to them and from them.
They now have decided that I should send them my passport or photographic driving licence (I only have an old style one) and some other proof of address, originals or certified copies.
What gives?