The minimum value you can purchase at each brand is set by the retailers themselves.
We have put together a list of the minimum amount you can purchase at each brand:
Asda: £10
Just Eat: £10
Sainsbury's: £5
Tesco: £10
Morrisons: £10
Amazon: £25
Argos: £10
B&Q: £10
Caffè Nero: £10
John Lewis & Partners: £10
Currys PC World: £10
Halfords: £10
National Express: £10
Uber: £10
Costa: £5
Sports Direct: £10
Primark: £10
New Look: £10
Foot Locker: £10
Decathlon: £10
Clarks: £10
Bonmarché: £10
Adidas: £10
River Island: £10
FatFace: £10
Not On The High Street: £10
ASOS: £10
National Book Tokens: £5
National Trust: £10
Ernest Jones: £10
Deliveroo: £10
Pizza Express: £10
Pizza Hut: £10
Harvester: £10
The Restaurant Card: £10
Turtle Bay Restaurants: £10
Waterstones: £10
Prezzo: £10
The Great British Pub Card: £10
Toby Carvery: £10
All Bar One: £10
Vintage Inns: £10