VBA- Concatenate Cells with If function

I have a code that returns all the data I want from a query. The problem is that the csv format separates the data, even account names with commas in them. For each row, column A is the account name followed by 11 blocks of integer data (making a total of 12 cells used per row). Fortunately, for the accounts that have commas, the result is only one additional cell (making a total of 13 cells used per row).

I need an IF-THEN formula that will concatenate Column A & Column B if there are 13 used cells in that row, otherwise leaving things alone. Being new to VBA concatenate is giving me huge problems.

Any suggestions? Thanks in advance.