Tesco have changed how the way that these vouchers are issued. You can usually choose which departments you want to boost your vouchers in but this year, instead of selecting a department, it vouchers shall now be issued as a "Christmas Boost Token" which will boost your vouchers across 10 departments.
The departments included int the boost are:
* Toys & Bikes
* Christmas Trees, Lights & Decorations
* Phones & Accessories
* Health & Beauty Gift Sets
* Cook, Dine & Home
* Hudl 2 tablets & Accessories
Please note Ipads are not included.
For more information on how the clubcard boost works see here