MYSQL: Selecting value in column where column name is defined on a seperate table

I'm not sure this is possible with just SQL...any help will be appreciated:

I'm trying to retrieve a value in a column in table B (tblProduct). The column name is actually defined in reference table A (tblConfig_Group).

So, essentially, I'm given the tblConfig_Group.groupCode and tblProduct.VCI values

I need to retrieve the value in the appropriate column in tblProduct set in dbColumnUK.

tblConfig_Group:

+----+-----------+-------------+
| id | groupCode | dbColumnUK  |
+----+-----------+-------------+
| 01 | A         | WindowGBP_A |
| 02 | B         | WindowGBP_B |
| 03 | C         | WindowGBP_C |
| 04 | D         | WindowGBP_D |
+----+-----------+-------------+

tblProduct:

+----+---------+-------------+-------------+-------------+-------------+
| id | VCI     | WindowGBP_A | WindowGBP_B | WindowGBP_C | WindowGBP_D |
+----+---------+-------------+-------------+-------------+-------------+
| 01 | vci1    | 1           | 11          | 21          | 31          |
| 02 | vci2    | 2           | 12          | 22          | 32          |
| 03 | vci3    | 3           | 13          | 23          | 33          |
| 04 | vci4    | 4           | 14          | 24          | 34          |
+----+---------+-------------+-------------+-------------+-------------+