Complaint - No feedback

I've been sending the same request to 4 times over the past week, and even phoned their call center yesterday. Still not assisted. Emails were sent to:

- ***; *** and ***

I've made an annual payment last year from 1 Oct'18 - 31 Oct'19. This year I wanted to change the period of the annual payment to 1 Dec'19 - 31 Dec'20. I have therefore paid over the subscription for the month of Nov'19 manually on 5 Nov'19 and the proof of payment was attached the the 4 requests I've sent.

Please assist with:

- Correcting my account (payment was made on 5 Nov'19 for the month of Nov - therefore I am paid up to date) - Send me an invoice for the period 1 Dec'19 - 31 Dec'10 in order for me to make an annual payment.