Order of columns on mobile device

Hi,

For the page https://www.adaskalibratie.nl/kalibratiecentra/ I arranged the columns (locations, at the top 3 along each other / at the bottom 2 along each other) from left to right in alphabetical order. B, E and H in row 1 and L and N in row two.

However, on the mobile view the columns are shown in order from top to bottom: first the leftmost column row 1 and row 2, the middle column row 1 and row 2, the rightmost column row 1 and row 2. Can anyone help me with a solution to get the mobile view in the same order as desktop?

The page I need help with: [log in to see the link]