Trying to make me pay for a test i never requested.

I received an email that my account was in arrears in january. I was told that an invoice for the 1/2/2021 needed to be paid. I provided proof of payment and then was told that its actually an invoice from august 2020 that wasn't paid.

I saw i did in fact pay that one as well, i asked for a full statement and once i got it it also showed the august invoice was paid. I was then told that i still need to pay the 1/02/2021 invoice.

I provided proof of payment again. No replies, after a while i receive sms that my account is in arrears.

Eventually I found that they billed me 2 invoices for the same day. I requested 1 test, signed and paid for that 1 test at the office. Then after my tests were done they just billed me for another test. They now refuse to provide me with reasons why they did that. I did not authorize it, or even got the results for the second test that was apparently done.

Almost 2 months later and i still have this issue with them. They are utterly *********** and dont know the meaning of customer service.