HS.SetTextWithLabel returning blank

I have a requirement to copy cell text for top customer from prior month to save reinputting the customers month after month, I have written the below script but its not working this is version 11.1.2.2 does anyone have any ideas?   

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'this rule pulls the Topcustomer cell text from the prior period if the working account is populated with a 1

    vTriggerWK3030 = HS.GetCell("A#WK3030.C2#[None].C1#[None].C3#[None].C4#[None].I#[ICP None]")
    '
     If vTriggerWK3030 = "1" Then
    
      vCustList = HS.Custom3.list("TopCust","[Base]")
      For each vCust in vCustList
'
                  vPMCelltext = HS.GetCellTextWithLabel("A#AA900101.C1#[None].C2#Local.C3#"&vCust&".C4#[None].I#[ICP None].P#PRIOR","[Default]")