Handing over account

I never received an account from KZN Pathology. I did receive a phone call on 08/05/2015. We agreed that they resend the account. it took a while to arrive, but once received, I paid on 13/07/2015.<br> <br> Now I am receiving emails and threats of black listing from MorganDaly. I explained to them that the account as paid. Neither them or kZN pathology would bother to check.<br> <br> I offered KZN pathology to resend proof of payment, but they refuse to give me an email address to send it to. <br> So, I paid, albeit late due to postal hiccups. They don't want the proof of payment. I refuse to deal with MorganDaly, as Leaane there is very rude, and I have no contractual agreement or relation with them, and I have paid the account.