According to a number of resources the noun “accommodation” is uncountable. However, I often see the plural form “accommodations”, especially in online articles. So, is accommodation countable or uncountable?
I think it’s one of those British/American differences. For old fogies like me there is a belief that the singular is preferred but I am given to understand that the plural form is used regularly in American English. There are two points to bear in mind: it is gradually being used in the plural in British English and apparently it was used in the plural form in the UK up until the 18th century. So as they say: you takes your pick!
If your resources stated unequivocally that the word ‘accommodation’ is always uncountable, then I would recommend looking for new sources of information. Accommodation can be used as a countable noun and as an uncountable noun. Also bear in mind that the word accommodation is not used exclusively to refer to lodging.