No doubt you will read the post by the OP preceeding this post. he lays out the scenario as it happened. it is one thing to be very loyal to an entity but none of us were there !
BTW How can one get local currency out of empty ATMs ?

Yes BA had no presence at this airport, but I am sure other airlines were present. As soon as the diversion was decided, someone at BA operations should have swung into action calling their counterparts at the new airport.....yes, of the "resident". Airlines.. If nothing was done , one wonders who if anyone in senior management knows about this. I have given up /switched airlines , suppliers based on how well they do on IRROPS. After all regular OPS become second nature and that is why they come off without any major hitches. The measure of a person or entity comes thru at times of exceptions.

In hindsight at least if the original flt was not cancelled, someone should have given thought to plan B & C.