paid account but Ackermans still sent a message asking to make payment so disappointed

i paid my monthly installment of R315 on 29/04/2025 and today i received an sms stating that i should pay R315 via eft to standard bank or follow a link to make payment and today is the 02/05/2025 , i am so disappointed with this whole thing and i ask that they sort this matter out immediately because thats not the way to do things they need to get their facts straight before just sending stuff like this ive never missed a payment so i dont like being told i didnt pay for something when i did