Ran out so trip to the village to get some more. Why is it always at the wrong time? My doctor on holiday & NO you can't do this by fone - so go see the locum. Luckily they work in the same building and have access to the same systems so I WAS successful in getting some.
Did call 1st to see if I really needed them (only a week until she is back) and got a most definate YES!!
So bike down to the village.