I have spent a lot of effort in what I thought was a fruitless email discussion with my local council about toilets.
Long ago they got rid of most of the council owned ones and had a scheme where cafes, pubs and restaurants allowed access to theirs and got a small sum from the council for this. Then they closed the cafes, pubs and restaurants. We ended up with two, one "out of order" most of the time and one with limited hours. Closed on Sundays, on of the busiest days.
Yet the area is an attractive one with a lot of open space and has been attracting a lot of visitors from a wide area all year, who have spent a lot of money in our shops and takeaways.
The council's response to my emails is that people should go home if they need the toilet and the police would be asked to deal with public urination. Seems they were happy to criminalise otherwise law-abiding citizens, particularly the elderly who need toilets most urgently, rather than provide the facilities that they need.
At last, they have provided some temporary toilets. They close at 8pm, so the problem continues for anyone enjoying light summer evenings, but at least it's something.
So now I would say, keep on and on and on at your council. It might work.