However, there is more than sufficient misleading ambiguity on that page which contradicts EU law (and likely EU Member State consumer or contract law).
EU law [1] states that a minimum period of 6 months is always available wherein defects that arise after delivery are assumed to have existed at or before delivery unless proven otherwise.
EU law provides for a Member State optional notification obligation on consumers that they have to inform the seller of a fault within 2 months. The UK has chosen not to exercise this notification. Belgium, for example, allows for contracts to specify the existence, length of the notification period (not less than 2 months) and consequences of lack of notification [2].
Similarly, in the case of the UK, "claim period" is ambiguous because under UK Sale of Goods Act 1979, consumers have 6 years to take a claim to court for faulty goods in England, Wales and Northern Ireland (5 years in Scotland) [3].