AVBOB FUNERAL SERVICE, MAITLAND, WC : POOR CLIENT SERVICE

I paid for a cremation during February 2021 via EFT to AVBOB Maitland, Cape Town and never received an invoice. Upon enquiry telephonically I was at first promised to receive a "call back" as well as emailed proof of payment (screenshot from banking App) an invoice were emailed, but I discovered that it was not completed with my details, but instead someone else's...I requested an edited version with my details, but told that their system was finalised already and that it was to late to edit/amend. Now my question to this is how on earth this can happen because shouldn't the person who paid be given an invoice with their own personal details seeing that Avbob also received the details of the person responsible for payment... ??? Why can't an edited invoice be issued to correct the matter seeing that proof of payment were send?? I then also requested a duplicate copy of the cremation certificate, paid for it, emailed proof of payment and was promised that it will be emailed, but this also never happened. Emailed again, without reply.. Called Avbob crematorium as well, but no answer. This is not at all customer service and very frustrating... I hope AVBOB Management will intervene and come to my rescue