You are alright if you only bought what you were entitled to, even if you got them earlier. What they are establishing those people who have bought more than one on one customer number.
I know because I had put a postal application in over two weeks and then bought on line on Wednesday morning because I thought I would not get any via my postal application. I had rung them last friday to ask if they would pick up if I had bought online when processing a postal application and they said probably not.
Speaking to them yesterday, they said I could only have one set, which is totally fair, even though I had paid for both. They are refunding me and one of the orders on the account has been reduced to 0.00. I did say why I had done it as she said that all the postal applications had been processed on Tuesday (if only they knew they were going to do that last friday).
They have over 7000 people on the waiting list