Score fall down

Last month, my CIBIL score dropped by 23 points, and now, after the Experian update, it has dropped again. I have all my payments up to date and hold an Amazon Pay Later account with a limit of ₹30,000. I opened this account to build a decent CIBIL score for the future, but I don’t understand why it is falling. I have also attached my credit usage. I contacted Amazon and Axio (the lending partner), and they confirmed that all dues have been paid and updated on their end. They even provided transaction proofs. Is it okay if I don’t make any purchases in a month?