They are not very helpful.
So you have to ask Animal Health.....I looked up the number and rang the first number that came up - turned out to be a dog kennels

Now we are doing our test this week I am not asking for this one to be changed. I am asking for it to be changed - next time. Because at the moment in winter the herd is in 7 batches which it fiddly and if it is done April/May or September/October, instead of Feb/ March they will be in just 2 batches. easier for us and the vet!!!
So...they rang me to say no! Because I don't have extenuating circumstances.....so I have asked THEM to put their reply in an email for me please.....
Stephanie