Allotment Ponds

Does anyone know if Wildlife ponds are not allowed on Allotment plots. I read an article in The Telegraph about installing a small wildlife pond on allotments, so in July  I dug and lined a small wildlife pond and everyone on the site was most helpful and enthusiastic about it offering plants etc. Now the Town council have told me ponds are a "grey area" and they would keep me informed. In December on the agreement they have installed a new clause stating ponds and water features are not permitted. They have done this with no consultation even the site rep knew nothing about it.

Under new rules, we aren't allowed new ones, but old ones can stay as long as they are fenced or covered with strong pond netting to stop children falling in. Old baths filled with water are not classed as ponds and have now to be removed from site.

We're allowed them at our site, I really hope the rules are not changin here, damn near broke my back digging mine out