I think there is more to come TTT. They are already arguing about the likely tax increases to cover the shortfall created when we leave. Italy is particularly vociferous in it's demands for funds to cover our "missing" dosh, and insists that they will not pay increased "taxes" themselves regardless.
https://www.telegraph.co.uk/news/2017/01/17/brexit-will-bring-bitter-eu-budget-wars-report-warns/
Then there is the shortfall in the healthcare "contributions".
""BRITAIN paid European governments nearly £565million more last year to treat UK citizens abroad than the government got back from them to care for their nationals, official figures have shown.""
How come we pay £565million a year more, to treat uk citizens abroad, than the other 27 EU spongers pay us?
https://www.express.co.uk/news/politics/940091/Brexit-news-Britain-abused-EU-health-tourism-gap-NHS-crisis