Adding date table to mdx query

Hello

In my last post I asked how to correctly pull data using MDX filtering and got everything working.
Code that helped me filter out and format it just how I needed:

SELECT
NON EMPTY {[Project POS].[Type hierarchy].[WinPOS], [Project POS].[Type hierarchy].[SelfCheckout]} ON COLUMNS,
NON EMPTY {[Project POS].[POS hierarchy].[Project]} ON ROWS
FROM [Property Cube]
WHERE ([Time].[Time].[Calendar Year].&[2020],[Measures].[Count of Receipts])

So now this MDX is nicely pulling the correct data from year 2020. Now I need to add a date column/row so I could add a filter to my report. I need to be able to filter between January, February, March etc. With this code atm I can only show year 2020 data without the option to choose what month,day. 
In this cube I have a Date - Time table which I'd need to add to my previous code somehow. 
When I try to add it as a new line:

SELECT
NON EMPTY {[Project POS].[Type hierarchy].[WinPOS], [Project POS].[Type hierarchy].[SelfCheckout]} ON COLUMNS,
NON EMPTY {[Project POS].[POS hierarchy].[Project]} ON ROWS,
NON EMPTY {[Time].[Time].[Calendar Year].&[2020]} ON COLUMNS
FROM [Property Cube]
WHERE ([Time].[Time].[Calendar Year].&[2020],[Measures].[Count of Receipts])

I get error 

An axis number cannot be repeated in a query.