Import Bank Statement, using .OFX format

Import Bank Statement, using .OFX format

I am trying to import a bank statement, using the .OFX format - which is the format that our French bank are using for exporting the statements.

I am unable to do it, it stops in the following error

24 Amount:  The value for this column is either incorrect or it is not the expected value.
Looking at the .OFX file in notepad, line 24 is the data holding the bank account number.  
In our case line 24 look like:
<TRNUID>300770419515185xxxxxxEUR
(the x's are my replacements of numbers)

Anyone have any idea?  Anyone been able to import .OFX files?

Thanks.