Difficulties with household staff - litter tray training

Dear George,
You know my humans, Merrie and Robin so I am writing to you for advice.  With the very cold winter they provided me with an indoor lavatory in the garage and at night moved it into the kitchen as I sleep in the breakfast room. They won't allow me on their bed any more as they say I fidget and wake them up.  When it got warmer and I was able to come and go more easily and visit my house next door without being carried because it was cold, snowy or wet, they had the cheek to remove the tray at night from the kitchen.  They thought as I was peeing in the garden again, Robin didn't want the bother of carting the tray from the garage into the kitchen.  Naturally I piddle in one corner when I wake up in the night or morning.  Why should I go out through the cat flap in the early morning when I am nearly nineteen years?  The staff have no consideration. They are putting disinfectant down  but I am continuing. 
Yours in disgust at human failings,
Lily.

Dear Lily,
We all have problems with staff. Incompetence and lack of intelligence are common human failings. There are so many human idiocies here, that I hardly know where to start.
First, the litter tray.You are an elderly cat and like other oldies (human as well as feline) you need to be able to get to the loo in time.  You should not have to struggle out in the frost in winter and the rain in the so-called British summer. So, you need a loo indoors in the warm - not too close to the food bowl. Do they have a utility room or  downstairs human lavatory that would be suitable?
Secondly... the disinfectant. Your staff are obviously totally untrained in proper cleaning. I love the smell of disinfectant and I expect you do too. Stupid humans who are smell blind think disinfectant smells of lemon or some other scent. We know that it smells of cat pee. So naturally, we pee on top of it. "Cleaning" cat pee with disinfectant is like putting up a notice "Pee here" for us cats. Tell your human to contact Celia's website on how to clean up.
In general, Lily, I wonder if your humans need more training. Human intelligence is severely limited and household staff really can't cope unless they are properly trained. Put more effort into this. 
Yours George
PS. Reclaim your bed. If you fidget, they can always sleep downstairs on the sofa or in the spare room. What is the world coming to when humans think they can take over our beds.