VBA Code Error - Extract Data From Multiple Workbooks To Single Excel Spreadsheet

I have a folder with multiples excel sheets

Destination : C: Project CustomerExcel

I would like to extract and compile the information contained in these cells:
a5,c5,a6,c6,c7,a14,g14,e16,g16,e18,i18,a20,g20,h22,j22,h24,l24 all the sheets.

New sheet would contain the information of each sheet eg. Column A2= file name

And Row B2 to R2 or whatever will be the corresponding cells mentioned above for each cell. The code I have only brings back the file name but only a5 from the range but not the rest.

VB:
Sub MergeAllWorkbooks()
Dim SummarySheet As Worksheet
Dim FolderPath As String
Dim NRow As Long
Dim FileName As String
Dim WorkBk As Workbook
Dim SourceRange As Range

[Code] .....