VBA Double "select row based on value in column"

I have an interesting task to accomplish via VBA. I, basically, need to select entire row based on criteria value="REZ" in column "C". Code that I got for that is:

 Dim c As Range
 Dim rngG As Range

 For Each c In Intersect(ActiveSheet.UsedRange, Columns("C"))

 If c = "REZ" Then
 If rngG Is Nothing Then Set rngG = c.EntireRow
 Set rngG = Union(rngG, c.EntireRow)
 End If

 Next c
 rngG.Select

Each selected row has some value in column "J". So now I need to additionally select all entire rows that contains those values gotten from first step.

Images to better explain: Firstly we need to get rows with "REZ" in column "C"

https://i.stack.imgur.com/uwHzT.png

Now we know that rows value in column "J" which in this case is "27.2.12" So now additionally to what we have selected we need to select all the rows that contain "27.2.12" which is ALWAYS some number of rows directly after the row found and selected in step 1 and never match exactly as each value in column "J" is unique. In this case it would be:

https://i.stack.imgur.com/ZMQpI.png

I imagine is as two IF functions where the second one takes the info from the result of the first.

Would someone please help me add to and modify the code that I already have?

Workbook example: https://easyupload.io/yewg9o

I highlighted "REZ" rows with yellow that are selected in step 1 and cells that I expect to be selected based on step 1 are highlighted with green.