Claims not being paid, no response, no explanation what so ever

Hello Discovery.

On 02-02-2018 I submitted 4 claims to Discovery Health for acupuncture treatment for my wife and myself (Reference nr. ********** 956). Only 1 claim was paid out (22-01-2018). I received no information why the other 3 were not paid out or rejected. So on 14-02-2018 I submitted another claim (Reference nr. ********** 203) and I attached the 3 invoices that were not paid out. Up to today I have not received any feedback with regard to these claims which should have been paid out. We are insured by the "Executive Plan" and this is really poor service.