Perhaps some of you on here more savvy than me can explain this. McKenzie tried, but I did not understand a F$^&%in' thing they were saying. I was doing taxes. I deduct expenses. McKenzie invoices look fine. Yet, on my credit card...........there is the invoice amount, plus $5.61 for ??? $6.20 for what? None of these charges are on the invoice, and nobody else on the planet gives me crap on my credit card like this. WTF????? The explanation from McKenzie was incomprehensible.