Pathetic accounting

My husband had blood tests done in July 2017, I received a call Jan 2018 asking if I had received the account. I had not so they sent it to me. I then paid the account the following day and sent the proof of payment to them with the reference number that they state on their account. The very next day I got an email asking for the patients full name and surname, ID number or medical aid membership number. This in itself is ridiculous since I used THEIR reference number on the payment. I however supp**** them with all this information. 2 days after that my husband received an SMS stating that we had been handed over for collection. REALLY!!!!!! After 1 week of first seeing this account !! AND I paid the damn thing anyway. This is not the first time I have had issues with the billing of Lancet, they must really have some brainless people "working" there.