Why do such fake/loan calls come as the EMI date approaches? What should I do?

I have taken a phone on EMI, and as soon as 10-15 days are left, I start receiving fake loan and fraud calls from different names and numbers (as shown in the screenshots). Even though I pay the EMI on time and have auto debit set up, these calls keep coming. How can I stop them? Has anyone else experienced this before, and what is the solution? Please help!