Make mayonnaise sachets/dips available in McDonald's (because how are they not already?!)

Make mayonnaise sachets/dips available in McDonald's (because how are they not already?!)
This Saturday at 4am I had the unfortunate experience of learning that McDonald's do not in fact stock mayonnaise. At all. Ever. You cannot get it in any of their UK stores for love, tears, nor money.
Considering that last year mayonnaise overtook ketchup as the UK's most popular choice of condiment, the most popular fast food chain appears to be really missing a trick here.
This petition is to lobby McDonald's into stocking that beautiful egg-based dressing across all stores in the UK and proving to its customers once and for all that EVERYONE matters, not just the ketchup and BBQ lovers. If Wetherspoons, Burger King and literally every single other place that serves fries can do it, surely McDonald's can too?
All support for this vital cause is hugely appreciated.
With thanks,
Team Mayo #McDonaldsMayoMission
(Jennifer Savin and Yasmin Jaunbocus)