Only problems with MTN all the time and no service!!!!!!

Fresh from being reported to the ombudsman for *****ing my data, MTN starts off 2021 by being even more ridiculous!!!!! I UPGRADED LATE LAST YEAR, AND AS USUAL PAID THE INSTALMENT ON TIME. ON 18 JANUARY I GET A MESSAGE SAYING THAT I HAVENT PAID AND I HAVE TO PAY IMMEDIATELY TO BE RECONNECTED. CAN SOMEONE AN MTN JUST WAKE UP ALREADY!!!!!! THE PAYMENT DATE IS THE END OF THE MONTH. I HAVE PAID FOR DECEMBER AND WILL PAY FOR JAN AT THE END OF THIS MONTH AS ALWAYS!!!!!! I SWEAR, IF THIS IS HOW IT STARTS JUST 2 MONTHS AFTER UPGRADING, I WILL GO BACK TO THE OMBUDSMAN AND LAY ANOTHER FORMAL COMPLAINT AGAINST MTN!!!!!!!!!