Determine which legal clause the following paragraph belongs to: The monthly data allowance for the Aggregated Data tier.  is only for use by the User types set out in the table above; ii. is only for use in the UK and Zones 1&2; and ii. includes access up to 4 G services.  All other data is excluded.  will bar any Connections not Connected to the Aggregated Data Service Plan from accessing data services. If the Customer subsequently requests access for these Connections or Future New Connection to data services, they will be Connected to the Aggregated Data Service Plan and benefit from the then current Aggregated Data tier.  will not carry over any unused data allowance from a previous Review Period.  The Customer must request the activation of roaming to access the Services whilst outside of the UK.  3.  Rev ew will review the Customer' s data usage:  a.  every 3 months during the tem of this Agreement following the Service Com men c ment Date of the Aggregated Data Service Plan( " Review Period" ) : and ii. on tem n in at on of this will calculate the total number of Connections over the Review Period by dividing the total monthly Subscription Charges Agreement.  b.  payable over the Review Period by the current Aggregated Data tier monthly Subscription Charge per Connection( Total Con nec t ions' ) .  d.  will. if any review( whenever conducted) de men es that the Average Usage per Connection:  1. exceeds the monthly data allowance per Connection for the current Aggregated Data tier, move the Customer to a higher Aggregated Data tier( as set out in the table above) appropriate to the Customer' s actual data usage but below the lowest Aggregated Data tier set out in the table above.  w ll apply the revised monthly Subscription Charges per Connection for the alternative Aggregated Data tier at the next billing cycle following the period under review.