We hope it never comes to that, but if you're in the application process i.e. limits are not sanctioned yet then discontinue the application to prevent setting up Qik EMI card .
In case limits are sanctioned , you can contact Tata Capital Customer care at 1860 267 6060 between 9 AM to 8 PM, Monday to Saturday for next steps
Alternatively, you can send an email from your registered ID to customercare@tatacapital.com