We can't find that page, but we've found something similar.
There doesn't appear to be anything at https://www.motorlet.co.uk/car-leasing/mercedes_benz/gla-class/hatchback-gla-180-amg-line-edition-5dr but we think we've found what you're after at /car-leasing/mercedes_benz/gla-class.
You will be redirected there momentarily...