Still no payment after 4 weeks

I submitted my claim for surgeons fees on the 13th of December that I paid out of pocket. I submitted it online, and after not hearing anything for a week phoned the call centre who said I must email it as well. I then emailed it through. I phoned Discovery on the 27th of December to follow up, and was told that there is a backlog on claims. It is now the 11th of Jan and still no payout. It was a lot of money, especially at this time of year, but there is just no urgency. Discovery is quick to make a debit order a day earlier over the festive season, but has no urgency when they actually have to reimburse you. Very disappointing.