Bestmed's horrible customer support

On 21/10/2020 me and my partner had to under go covid test. the claims where summited to Bestmed by Lancet. after a code error the payments where not made. a number of calls where made to Bestmed to get the correct code needed for the invoice. after 4 months the claim for my partner has still not been resolved as Bestmed wont supply the correct code needed. now Bestmed has told me they will not be paying for the claim as its over 4 months. this is the worst costumer support I have ever seen and Bestmed should be ashamed of there costumer support during a pandemic. Shame on you Bestmed you are about to lose a client.