Unprofessionalism when coming to invoices. *****ing money for nothing!

I'm writing this on behalf of my husband, who is abroad and has limited online access. I see you have been harassing him and handed him over now for email ***. All it states on the invoice is *** CASH PATIENTS. This is absolute *******. My husband paid you in cash in full on the day he was there. What is this **** of charging for CASH PATIENT??? You can forget about getting another cent. The amount was given to him that day, more than R2500, and that is what he paid. I see a lot of people complaining about your company trying your luck to get more money out of people afterwards. No extra tests were done or asked for, and I'm sorry, but CASH PATIENT is a lame excuse when ALL FUNDS WERE PAID ON THE DAY! Remove this and also withdraw this **** from Blake's and Attorneys, as you have no handed him over. You should be ashamed of your practices! You can contact me on *** as he can't be reached.