Approval Rule Configuration (Exclude Option)

Hello experts,

I have a question about using the exclude option in approval rules.

Here's an example:

Employee1 can approve up to $5000 for a second segment in Charge account 328.
Employee2 can approve all for a second segment in Charge account from 300-399 except 328.

I found a workaround by dividing it into two ranges that don't include class 328, creating three rules.
Is there a nicer solution that would include an exclude command?

The following commad exclude didn't work for me (.)\.?!328\.(.)\.(.)\.(.)\.(.)\.(.)

Rule 1

(.)\.328\.(.)\.(.)\.(.)\.(.)\.(.)

Rule 2

Range 300-327

(.)\.3[1-2][0-7]\.(.)\.(.)\.(.)\.(.)\.(.)

Rule3

Range 330-399

(.)\.3[3-9][0-9]\.(.)\.(.)\.(.)\.(.)\.(.)

BR

Tauson