Refund from Momentum Insurance

In November 2020 I was hijacked and my money was ****** by the ******s just before the debit order went off for November premium. I was given finally given a go ahead to deposit the November premium after I insisted so that Momentum can entertain my claim. I paid R1838 for November and in December there was a double debit covering November and December premiums. Momentum promises to reimburse me with R1838 in November 2020. After many calls and emails I am not getting any help.