Import function not case sensitive

Hello, i am importing some coupons and i get the 'ERROR DUPLICATE COUPON CODE' error.

I think it is because i am trying to import coupons with same name in different case (uppercase, lowercase) as coupon entry in checkout page is case-sensitive

But i think that import function look for duplicates in import file in no case-sensitive way:
file models/import.php,
line 41
@$arrdistinctcodes[strtolower($row[1])]++;
line 165
if($arrdistinctcodes[strtolower($row[1])]>1) {

i thing that strtolower should not be used here

AwoCoupon Pro 1.3.3 pro version

You are absolutely right. I will make a note of it and make sure this is fixed in the next version.

Thanks