a company that does not know what they are doing

Device (Samsung A32) returned to Rentoza in mint condition on 11/06/2022. On 29/06/2022 subscription for this device gets deducted from my account. After emailing them more than 10 times, finally on 21/07/2022 money is refunded to me. After they apologized and confirmed it will not deduct again, its deducted again on 29/07/2022, subscription fee of R565.00. But in the meantime I have just received a "final notice" email for my active subscription (Samsung Tab6) of R460.00 per month