Hi pingusolid
PIP review forms are typically sent out up to a year before the end date. So, yes you can expect your claim form to arrive any time from the 7th. However, when exactly it will arrive is impossible to guess. Some people are receiving them with a year to go, some six months and a friend of mine recently received hers two weeks before her extended end date. In truth, it can be at any time.
BIS
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