Hello @Serge-and-Brigitte0
What mean spirited Landlords to revoke your License. especially if you have otherwise adhered to your Tenancy Agreement.
Have you had any complaints from neighbours or Guests who have posed any serious issues in that time?
Is there any clause in your Tenancy Regulations / Legislation that could deem it to be a Retaliatory action?
Does your local Tenancy Regulator have any comparisons for average rental increases for comparable properties in your Location?
Have you looked on your local Legal Decision Database where there have been ABB and or similar cases of previous Case Law?
Have you considered perhaps to a mutual agreement with your Landlord to perhaps have a percentage of any "profits' that they may perceive you to be receiving?
It's more conducive to a good working relationship to have happy. excellent tenants than take on new ones who could be much worse than yourselves.
There's always 'Grey areas' in laws and you may like to exercise some of those options.
You may also like to use related keywords in the searchbox here in CC to see if anyone else has encountered similar situations as your own.
Please keep us posted how you get on
All the best from New Zealand where we are fortunate to have some staff at Dept of Building & Housing who are tenants renting, share & use ABB & who understand where tenants come from.