Rescheduling Pip Assessment

I received my Pip Asdessert letter 2 weeks ago it was a 9.00 appointment at a centre that would take 2 hours to drive through heavy commuter traffic. I rang immediately and ask if there was anything nearer to me. A very pleasant lady offered me an appointment for tomorrow at a centre 15 minutes away with plenty of parking nearby, which I great fully accepted she ask me if I was sure it was ok as I would not be able to change it again, I confirmed it wa ok, ven wished me good luck. I had a confirmation letter for this appointment. I have been worrying about this and wishing it over, yesterday I received another letter informing me my assessment was now going to be at the original place 2 hours drive away! Rang up again to ask what was going on the person kept me on hold for a few minutes then came back and said she could change it. I now have an appointment at the end of the month once again I was warned I would not be able to change it again. I pointed out that it was not me that changed it back again to original venue she said the appointments are computer generated, I said that I hoped that it would not happen again with this one, she said it would not. Is this all some kind of test? I am already at my wits end with worry about assessment, all this is just another straw on the camel's back.

Thank you that's reassuring. I think this stress must be making me paranoid!