LANCET LABORATORIES TOTALLY INEFFICIENT

My partner and I have Medical Aid with Discovery Heath on their "in hospital" cover plan. My partner was admitted to hospital on 13 Feb. 2016 and discharged on 19th Feb. During his stay all his treatment costs were met in full by Discovery except those from Drs. Mauff A C & Partners who appear to have some affiliation with Lancet Laboratories. Yesterday I received an sms from Lancet stating that there was amount outstanding of R1214.70 that appears to be only 50% of the amount claimed. Upon checking with Discovery they confirmed that Lancet had been paid IN FULL. Today I received another sms from Lancet stating that this sum was still outstanding and giving me 7 days in which to pay. They also emailed me the supposed invoices they had sent. None of which were ever received and were protected by a password alleged to be my SA ID number which was rejected by Lancet's system. I also tried the patient's ID number which was also rejected. I have now spent about 5 hours trying to resolve this matter and several telephone calls. One wonders if Lancet's inefficiency is reflected also in their ability to supply accurate results of the blood samples entrusted to their care.