Horrible Customer Service- African Bank💔

I have a credit card with African bank, never missed a payment from day 1. I’ve been receiving SMS and calls from the 9th of December that I have to make an early payment for this month. The message reads that ‘if don’t pay early, they will will hand over my account “! I get paid on the last day of the month and they always calling me to make arrangements as if I skipped a payment. Their customer service is crab! They only followed the complaints procedure which was to acknowledge my complaint and send me a rude lady who couldn’t give me a solution to the problem??? I hate African bank and I don’t think I will recommend them to anyone! All my creditors debit on the last day of each, what’s so special about African bank demanding early payments? We don’t all get paid mid December so please stop harassing me with calls and SMSs of taking legal actions when I never missed payments!