Group in Pivot by Case sensitive -how to do

Dear all,

I have a data below

Branch Account code Account Name Months Sales
AYLESBURY H01371 XYZ Limited 2013-06 100
AYLESBURY H01371 XYZ Limited 2013-07 200
AYLESBURY H01371 XYZ Limited 2013-08 150
POOLE h01371 ABC Co. 2013-07 400
POOLE h01371 ABC Co. 2013-08 500
POOLE h01371 ABC Co. 2013-06 700

when I use pivot table and group by branch,account code and Account name it give only two records but both have H01371.

I want two record, one should be H01371 and second h01371.

How to separate both upper & lower case?

See attachment.


Please help!

Regards

Vinay